Dont use namespace std
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b40998f356
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24c8888bd3
GPG key ID:
014B273D614BE877
5 changed files with 97 additions and 103 deletions
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@ -2,8 +2,6 @@
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#include "fractions.hpp"
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#include <iostream>
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using namespace std;
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class cnumber {
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private:
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fraction r, i;
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@ -78,7 +76,7 @@ public:
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return ratio;
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}
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friend ostream &operator<<(ostream &os, const cnumber &z) {
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friend std::ostream &operator<<(std::ostream &os, const cnumber &z) {
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if (z.r != 0) {
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os << z.r;
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if ((z.i.get_sign() == 1) && (z.i > 0)) {
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@ -2,8 +2,6 @@
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#include <iostream>
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#include <string>
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using namespace std;
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class fraction {
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private:
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signed long long n = 0;
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@ -15,7 +13,7 @@ private:
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return gcd(b, a % b);
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}
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int get_precision(double a) {
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string s = to_string(a);
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std::string s = std::to_string(a);
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int i = s.length() - 1;
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while (s[i] == '0') {
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i--;
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@ -108,10 +106,10 @@ public:
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fraction b(that.d, that.n);
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return a * b;
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}
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friend ostream &operator<<(ostream &os, const fraction &q) {
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friend std::ostream &operator<<(std::ostream &os, const fraction &q) {
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signed long long num = q.n;
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signed long long den = q.d;
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string s = "";
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std::string s = "";
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if (q.n < 0) {
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s = "-";
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num = num * -1;
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@ -121,7 +119,7 @@ public:
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den = den * -1;
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}
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if (q.get_sign() == 1) {
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string s = "";
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std::string s = "";
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}
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if (q.d == q.n) {
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os << s << 1;
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156
main.cpp
156
main.cpp
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@ -8,20 +8,20 @@ void cnumber_main() {
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cnumber a(3, 2);
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cnumber b(4, -3);
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cout << "a = " << a << endl;
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cout << "a* = " << a.conjugate() << endl;
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cout << "a*a* = " << a * a.conjugate() << endl;
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cout << "b = " << b << endl;
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cout << "b* = " << b.conjugate() << endl;
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cout << "b*b* = " << b * b.conjugate() << endl;
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cout << "a + b = " << a + b << endl;
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cout << "(a + b)* = " << (a + b).conjugate() << endl;
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cout << "a - b = " << a - b << endl;
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cout << "(a - b)* = " << (a - b).conjugate() << endl;
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cout << "a * b = " << a * b << endl;
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cout << "(a * b)* = " << (a * b).conjugate() << endl;
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cout << "a / b = " << a / b << endl;
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cout << "(a / b)* = " << (a / b).conjugate() << endl;
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std::cout << "a = " << a << std::endl;
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std::cout << "a* = " << a.conjugate() << std::endl;
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std::cout << "a*a* = " << a * a.conjugate() << std::endl;
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std::cout << "b = " << b << std::endl;
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std::cout << "b* = " << b.conjugate() << std::endl;
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std::cout << "b*b* = " << b * b.conjugate() << std::endl;
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std::cout << "a + b = " << a + b << std::endl;
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std::cout << "(a + b)* = " << (a + b).conjugate() << std::endl;
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std::cout << "a - b = " << a - b << std::endl;
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std::cout << "(a - b)* = " << (a - b).conjugate() << std::endl;
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std::cout << "a * b = " << a * b << std::endl;
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std::cout << "(a * b)* = " << (a * b).conjugate() << std::endl;
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std::cout << "a / b = " << a / b << std::endl;
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std::cout << "(a / b)* = " << (a / b).conjugate() << std::endl;
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}
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void fraction_main() {
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@ -33,20 +33,20 @@ void fraction_main() {
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fraction q(a, b);
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fraction q2(c, d);
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fraction q3(e);
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cout.precision(10);
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cout << a << "/" << b << '=' << q << endl;
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cout << a << "/" << b << '=' << q.to_double() << endl;
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cout << c << "/" << d << '=' << q2 << endl;
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cout << c << "/" << d << '=' << q2.to_double() << endl;
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cout << q << "+" << q2 << '=' << q + q2 << endl;
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cout << q << "+" << q2 << '=' << (q + q2).to_double() << endl;
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cout << q << "-" << q2 << '=' << q - q2 << endl;
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cout << q << "-" << q2 << '=' << (q - q2).to_double() << endl;
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cout << q << "*" << q2 << '=' << q * q2 << endl;
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cout << q << "*" << q2 << '=' << (q * q2).to_double() << endl;
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cout << q << "/" << q2 << '=' << q / q2 << endl;
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cout << q << "/" << q2 << '=' << (q / q2).to_double() << endl;
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cout << e << '=' << q3 << endl;
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std::cout.precision(10);
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std::cout << a << "/" << b << '=' << q << std::endl;
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std::cout << a << "/" << b << '=' << q.to_double() << std::endl;
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std::cout << c << "/" << d << '=' << q2 << std::endl;
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std::cout << c << "/" << d << '=' << q2.to_double() << std::endl;
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std::cout << q << "+" << q2 << '=' << q + q2 << std::endl;
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std::cout << q << "+" << q2 << '=' << (q + q2).to_double() << std::endl;
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std::cout << q << "-" << q2 << '=' << q - q2 << std::endl;
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std::cout << q << "-" << q2 << '=' << (q - q2).to_double() << std::endl;
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std::cout << q << "*" << q2 << '=' << q * q2 << std::endl;
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std::cout << q << "*" << q2 << '=' << (q * q2).to_double() << std::endl;
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std::cout << q << "/" << q2 << '=' << q / q2 << std::endl;
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std::cout << q << "/" << q2 << '=' << (q / q2).to_double() << std::endl;
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std::cout << e << '=' << q3 << std::endl;
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}
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void matrix_main() {
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@ -74,42 +74,42 @@ void matrix_main() {
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n[0] = c;
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n[1] = d;
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cout << "The matrix m" << endl;
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cout << m << endl;
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cout << "The determinant of matrix m:" << endl;
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cout << m.determinant() << endl;
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cout << "The matrix n:" << endl;
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cout << n << endl;
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cout << "The matrix n roted by one pi radian:" << endl;
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cout << n.rotate_by_one_pi() << endl;
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cout << "The determinant of matrix n:" << endl;
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cout << n.determinant() << endl;
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cout << "The matrix n's transpose:" << endl;
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cout << n.transpose() << endl;
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cout << "The matrix n's diagonal:" << endl;
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cout << n.get_diagonal() << endl;
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cout << "The matrix n's off diagonal:" << endl;
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cout << n.get_off_diagonal() << endl;
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cout << "The vector d:" << endl;
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cout << d << endl;
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cout << "The matrix n * the vector d" << endl;
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cout << n * d << endl;
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cout << "The vector d * the matrix n" << endl;
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cout << d * n << endl;
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cout << "The matrix m * n" << endl;
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cout << m * n << endl;
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cout << "The matrix m + n" << endl;
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cout << m + n << endl;
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cout << "Is 2 an eigenvalue of m?" << endl;
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std::cout << "The matrix m" << std::endl;
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std::cout << m << std::endl;
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std::cout << "The determinant of matrix m:" << std::endl;
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std::cout << m.determinant() << std::endl;
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std::cout << "The matrix n:" << std::endl;
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std::cout << n << std::endl;
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std::cout << "The matrix n roted by one pi radian:" << std::endl;
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std::cout << n.rotate_by_one_pi() << std::endl;
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std::cout << "The determinant of matrix n:" << std::endl;
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std::cout << n.determinant() << std::endl;
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std::cout << "The matrix n's transpose:" << std::endl;
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std::cout << n.transpose() << std::endl;
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std::cout << "The matrix n's diagonal:" << std::endl;
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std::cout << n.get_diagonal() << std::endl;
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std::cout << "The matrix n's off diagonal:" << std::endl;
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std::cout << n.get_off_diagonal() << std::endl;
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std::cout << "The vector d:" << std::endl;
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std::cout << d << std::endl;
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std::cout << "The matrix n * the vector d" << std::endl;
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std::cout << n * d << std::endl;
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std::cout << "The vector d * the matrix n" << std::endl;
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std::cout << d * n << std::endl;
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std::cout << "The matrix m * n" << std::endl;
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std::cout << m * n << std::endl;
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std::cout << "The matrix m + n" << std::endl;
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std::cout << m + n << std::endl;
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std::cout << "Is 2 an eigenvalue of m?" << std::endl;
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if (m.is_eigenvalue(2)) {
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cout << "Yes!" << endl;
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std::cout << "Yes!" << std::endl;
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} else {
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cout << "No!" << endl;
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std::cout << "No!" << std::endl;
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}
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if (n.is_hermitian()) {
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cout << "The matrix n is hermitian, here is the hermitian conjugate:"
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<< endl;
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cout << n.hermitian_conjugate() << endl;
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std::cout << "The matrix n is hermitian, here is the hermitian conjugate:"
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<< std::endl;
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std::cout << n.hermitian_conjugate() << std::endl;
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}
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}
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void vector_main() {
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@ -128,30 +128,30 @@ void vector_main() {
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w[0] = three;
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w[1] = four;
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w[2] = five;
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cout << "v:" << endl;
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cout << v << endl;
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cout << "w:" << endl;
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cout << w << endl;
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cout << "v + w:" << endl;
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cout << v + w << endl;
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cout << "v - w:" << endl;
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cout << v - w << endl;
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cout << "v * w:" << endl;
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cout << v * w << endl;
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cout << "w * i:" << endl;
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cout << w * i << endl;
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std::cout << "v:" << std::endl;
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std::cout << v << std::endl;
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std::cout << "w:" << std::endl;
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std::cout << w << std::endl;
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std::cout << "v + w:" << std::endl;
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std::cout << v + w << std::endl;
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std::cout << "v - w:" << std::endl;
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std::cout << v - w << std::endl;
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std::cout << "v * w:" << std::endl;
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std::cout << v * w << std::endl;
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std::cout << "w * i:" << std::endl;
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std::cout << w * i << std::endl;
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for (long long j = 0; j < v.get_dimention(); j++) {
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cout << "Element " << j << " of v:" << endl;
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cout << v[j] << endl;
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std::cout << "Element " << j << " of v:" << std::endl;
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std::cout << v[j] << std::endl;
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}
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cout << "A temp vector of dimension 3" << endl << vector(3) << endl;
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std::cout << "A temp vector of dimension 3" << std::endl << vector(3) << std::endl;
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vector k = vector(3);
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k = w;
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cout << "Assignment of w to k" << endl << k << endl;
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cout << "Manually set elements of k to elements of v" << endl;
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std::cout << "Assignment of w to k" << std::endl << k << std::endl;
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std::cout << "Manually set elements of k to elements of v" << std::endl;
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for (long long j = 0; j < v.get_dimention(); j++)
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k[j] = v[j];
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cout << k << endl;
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std::cout << k << std::endl;
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}
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int main() {
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fraction_main();
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17
matrix.hpp
17
matrix.hpp
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@ -3,7 +3,6 @@
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#include <iostream>
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#include <sstream>
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#include <string>
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using namespace std;
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class matrix {
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private:
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long long num_entries;
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@ -153,27 +152,27 @@ public:
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return false;
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return *this == this->hermitian_conjugate();
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}
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friend ostream &operator<<(ostream &os, const matrix &m) {
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friend std::ostream &operator<<(std::ostream &os, const matrix &m) {
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char last = '\0';
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int longest = 0;
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for (long long i = 0; i < m.num_entries; i++) {
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for (long long j = 0; j < m.entry_dimension; j++) {
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ostringstream oss;
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std::ostringstream oss;
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oss << m.entries[i][j];
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string s = oss.str();
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std::string s = oss.str();
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if (longest < s.length())
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longest = s.length();
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}
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}
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for (long long i = 0; i < m.num_entries; i++) {
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for (long long j = 0; j < m.entry_dimension; j++) {
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ostringstream iss;
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std::ostringstream iss;
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iss << m.entries[i][j];
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string s = iss.str();
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std::string s = iss.str();
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int padding = longest - s.length() +1;
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string symbols[3];
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std::string symbols[3];
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symbols[0] = "|";
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ostringstream oss;
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std::ostringstream oss;
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oss << m.entries[i][j] ;
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oss << std::setw(padding) << "|";
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symbols[1] = oss.str();
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@ -188,7 +187,7 @@ public:
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}
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}
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if (i != m.num_entries - 1)
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os << endl << "|";
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os << std::endl << "|";
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}
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return os;
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}
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13
vector.hpp
13
vector.hpp
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@ -2,7 +2,6 @@
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#include "cnumber.hpp"
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#include <iomanip>
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#include <iostream>
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using namespace std;
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class matrix;
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class vector {
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private:
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@ -59,23 +58,23 @@ public:
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// outside of the index
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cnumber &operator[](const long long index) { return this->entries[index]; }
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friend ostream &operator<<(ostream &os, const vector &v) {
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friend std::ostream &operator<<(std::ostream &os, const vector &v) {
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int longest = 0;
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for (long long i = 0; i < v.get_dimention(); i++) {
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ostringstream oss;
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std::ostringstream oss;
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oss << v[i];
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string s = oss.str();
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std::string s = oss.str();
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if (longest < s.length())
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longest = s.length();
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}
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for (long long i = 0; i < v.get_dimention(); i++) {
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ostringstream oss;
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std::ostringstream oss;
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oss << v[i];
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string s = oss.str();
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std::string s = oss.str();
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int padding = longest - s.length() +1;
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os << "|" << v[i] << std::setw(padding) << "|";
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if (i != v.get_dimention() - 1)
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os << endl;
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os << std::endl;
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}
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return os;
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}
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