Start of matrices

matrix.cpp

@@ -0,0 +1,20 @@
+#include "matrix.hpp"
+#include "../complex-numbers/cnumber.hpp"
+#include "../vectors/vector.hpp"
+
+int main() {
+  vector v = vector(2);
+  v[0] = cnumber(1, 0);
+  v[1] = cnumber(0, 1);
+
+  vector w = vector(2);
+  w[0] = cnumber(1, 0);
+  w[1] = cnumber(0, -1);
+
+  matrix m = matrix(2, 2);
+  m[0] = v;
+  m[1] = w;
+
+  cout << m << endl;
+  return 0;
+}

matrix.hpp

@@ -0,0 +1,58 @@
+#include "../vectors/vector.hpp"
+#include <iostream>
+#include <sstream>
+#include <string>
+using namespace std;
+class matrix {
+private:
+  long long num_rows;
+  long long num_cols;
+  vector *rows;
+
+public:
+  matrix(const long long num_rows, const long long num_cols) {
+    this->num_rows = num_rows;
+    this->num_cols = num_cols;
+    this->rows = (vector *)calloc(sizeof(vector), num_rows);
+    for (long long i = 0; i < num_rows; i++) {
+      this->rows[i] = vector(num_cols);
+    }
+  }
+  ~matrix() {
+    this->num_rows = 0;
+    this->num_cols = 0;
+    free(this->rows);
+    this->rows = NULL;
+  }
+  friend ostream &operator<<(ostream &os, const matrix &m) {
+    char last = '\0';
+    for (long long i = 0; i < m.num_rows; i++) {
+      for (long long j = 0; j < m.num_cols; j++) {
+        string symbols[3];
+        symbols[0] = "|";
+        ostringstream oss;
+        oss << " " << m.rows[i][j] << " ";
+        symbols[1] = oss.str();
+        symbols[2] = "|";
+        for (int i = 0; i < 3; i++) {
+          int len = symbols[i].length() - 1;
+          char cur = symbols[i][0];
+          if (cur != last) {
+            os << symbols[i];
+          }
+          last = symbols[i][len];
+        }
+      }
+      if (i != m.num_rows - 1)
+        os << endl << "|";
+    }
+    return os;
+  }
+  const vector operator[](const long long index) const {
+    return this->rows[index];
+  }
+
+  // FIXME: Figure out how to make sure you do not try to access something
+  // outside of the index
+  vector &operator[](const long long index) { return this->rows[index]; }
+};