Move things dependent on matrix out of line

cnumber.cpp

@@ -1,23 +0,0 @@
-#include <iostream>
-#include "cnumber.hpp"
-
-
-int main() {
-	cnumber a(3,2);
-	cnumber b(4,-3);
-
-	cout << "a = " << a << endl;
-	cout << "a* = " << a.conjugate() << endl;
-	cout << "a*a* = " << a * a.conjugate() << endl;
-	cout << "b = " <<  b << endl;
-	cout << "b* = " << b.conjugate() << endl;
-	cout << "b*b* = " << b * b.conjugate() << endl;
-	cout << "a + b = " << a + b << endl;
-	cout << "(a + b)* = " << (a + b).conjugate() << endl;
-	cout << "a - b =  " << a - b << endl;
-	cout << "(a - b)* = " << (a - b).conjugate() << endl;
-	cout << "a * b =  " << a * b << endl;
-	cout << "(a * b)* = " << (a * b).conjugate() << endl;
-	cout << "a / b = " << a / b << endl;
-	cout << "(a / b)* = " << (a / b).conjugate() << endl;
-}

fractions.cpp

@@ -1,29 +0,0 @@
-#include <iostream>
-#include "fractions.hpp"
-
-
-int main() {
-	int a = 7;
-	int b = 3;
-	int c = 1;
-	int d = 11;
-	double e = 0.75;
-	fraction q(a,b);
-	fraction q2(c,d);
-	fraction q3(e);
-	cout.precision(10);
-	cout << a << "/" << b << '=' << q << endl;
-	cout << a << "/" << b << '=' << q.to_double() << endl;
-	cout << c << "/" << d << '=' << q2 << endl;
-	cout << c << "/" << d << '=' << q2.to_double() << endl;
-	cout << q << "+" << q2 << '=' << q + q2 << endl;
-	cout << q << "+" << q2 << '=' << (q + q2).to_double() << endl;
-	cout << q << "-" << q2 << '=' << q - q2 << endl;
-	cout << q << "-" << q2 << '=' << (q - q2).to_double() << endl;
-	cout << q << "*" << q2 << '=' << q * q2 << endl;
-	cout << q << "*" << q2 << '=' << (q * q2).to_double() << endl;
-	cout << q << "/" << q2 << '=' << q / q2 << endl;
-	cout << q << "/" << q2 << '=' << (q / q2).to_double() << endl;
-	cout << e << '=' << q3 << endl;
-	return 0;
-}

matrix.cpp

@@ -1,60 +0,0 @@
-#include "matrix.hpp"
-
-int main() {
-  vector a = vector(2);
-  a[0] = 1;
-  a[1] = 1;
-
-  vector b = vector(2);
-  b[0] = 1;
-  b[1] = cnumber(1, 0);
-
-  vector c = vector(2);
-  c[0] = 2;
-  c[1] = cnumber(1, 1);
-
-  vector d = vector(2);
-  d[0] = cnumber(1, -1);
-  d[1] = 5;
-
-  matrix m = matrix(2, 2);
-  m[0] = a;
-  m[1] = b;
-
-  matrix n = matrix(2, 2);
-  n[0] = c;
-  n[1] = d;
-
-  cout << "The matrix m" << endl;
-  cout << m << endl;
-  cout << "The determinant of matrix m:" << endl;
-  cout << m.determinant() << endl;
-  cout << "The matrix n:" << endl;
-  cout << n << endl;
-  cout << "The matrix n roted by one pi radian:" << endl;
-  cout << n.rotate_by_one_pi() << endl;
-  cout << "The determinant of matrix n:" << endl;
-  cout << n.determinant() << endl;
-  cout << "The matrix n's transpose:" << endl;
-  cout << n.transpose() << endl;
-  cout << "The matrix n's diagonal:" << endl;
-  cout << n.get_diagonal() << endl;
-  cout << "The matrix n's off diagonal:" << endl;
-  cout << n.get_off_diagonal() << endl;
-  cout << "The matrix m * n" << endl;
-  cout << m * n << endl;
-  cout << "The matrix m + n" << endl;
-  cout << m + n << endl;
-  cout << "Is 2 an eigenvalue of m?" << endl;
-  if (m.is_eigenvalue(2)) {
-    cout << "Yes!" << endl;
-  } else {
-    cout << "No!" << endl;
-  }
-  if (n.is_hermitian()) {
-    cout << "The matrix n is hermitian, here is the hermitian conjugate:"
-         << endl;
-    cout << n.hermitian_conjugate() << endl;
-  }
-  return 0;
-}

matrix.hpp

@@ -37,6 +37,8 @@ public:
     this->entries = NULL;
     this->err = true;
   }
+  const long long get_num_entries() const { return this->num_entries; }
+  const long long get_entry_dimension() const { return this->entry_dimension; }
   const cnumber determinant() const {
     cnumber dsum(1, 0);
     cnumber osum(1, 0);

vector.cpp

@@ -1,45 +1,14 @@
 #include "vector.hpp"
-#include <iostream>
-using namespace std;
-int main() {
-  vector v = vector(3);
-  cnumber one(1, 0);
-  cnumber two(2, 0);
-  cnumber three(3, 0);
-  cnumber four(4, 0);
-  cnumber five(5, 0);
-  cnumber i(0, 1);
-  v[0] = one;
-  v[1] = two;
-  v[2] = i;
-
-  vector w = vector(3);
-  w[0] = three;
-  w[1] = four;
-  w[2] = five;
-  cout << "v:" << endl;
-  cout << v << endl;
-  cout << "w:" << endl;
-  cout << w << endl;
-  cout << "v + w:" << endl;
-  cout << v + w << endl;
-  cout << "v - w:" << endl;
-  cout << v - w << endl;
-  cout << "v * w:" << endl;
-  cout << v * w << endl;
-  cout << "w * i:" << endl;
-  cout << w * i << endl;
-  for (long long j = 0; j < v.get_dimention(); j++) {
-    cout << "Element " << j << " of v:" << endl;
-    cout << v[j] << endl;
+#include "matrix.hpp"
+const vector vector::operator*(const matrix &m) const {
+  vector res(m.get_num_entries());
+  for (long long i = 0; i < this->get_dimention(); i++) {
+    cnumber sum = 0;
+    for (long long j = 0; j < this->get_dimention(); j++) {
+      sum = sum + (m.get_entry(j)[i] * this->entries[j]);
+    }
+    res[i] = sum;
   }
-  cout << "A temp vector of dimension 3" << endl  << vector(3) << endl ;
-  vector k = vector(3);
-  k = w;
-  cout << "Assignment of w to k" << endl  << k << endl ;
-  cout << "Manually set elements of k to elements of v" << endl;
-  for (long long j = 0; j < v.get_dimention(); j++)
-	  k[j] = v[j];
-  cout << k << endl;
-  return 0;
+
+  return res;
 }

vector.hpp

@@ -2,6 +2,7 @@
 #include "cnumber.hpp"
 #include <iostream>
 using namespace std;
+class matrix;
 class vector {
 private:
   long long dimention = 0;
@@ -36,7 +37,7 @@ public:
     this->err = true;
   }
   long long get_dimention() const { return this->dimention; }
-  cnumber *get_entries() const { return this->entries; }
+  const cnumber *get_entries() const { return this->entries; }
   cnumber get_entry(const long long index) const {
     if (index < this->get_dimention()) {
       return this->entries[index];
@@ -95,6 +96,7 @@ public:
     }
     return sum;
   }
+  const vector operator*(const matrix &m) const;
   const vector operator*(const cnumber scalar) const {
     vector product = vector(this->get_dimention());
     for (long long i = 0; i < this->get_dimention(); i++) {