My branch

README.md

@@ -1,2 +1,4 @@
 # vector
 Linear space element representation
+[![Build Status](https://travis-ci.org/Demitriy/vector.svg)](https://travis-ci.org/Demitriy/vector)
+[![Build status](https://ci.appveyor.com/api/projects/status/tvujfqa7o74n1w8c?svg=true)](https://ci.appveyor.com/project/Demitriy/vector)

src/vector.cpp

@@ -0,0 +1,110 @@
+#include <stdio.h>
+#include "vector.h"
+#include <iostream>
+
+Vector::Vector() {
+    for(unsigned long i = 0; i < n; i++) {
+        coords_[i] = 0;
+    }
+}
+
+Vector::Vector(double a) {
+    for(unsigned long i = 0; i < n; i++) {
+        coords_[i] = a;
+    }
+}
+
+Vector::Vector(const Vector &B) {
+    for(unsigned long i = 0; i < n; i++) {
+        coords_[i] = B.coords_[i];
+    }
+}
+
+Vector &Vector::operator=(const Vector &B) {
+    for(unsigned long i = 0; i < n; i++) {
+        coords_[i] = B.coords_[i];
+    }
+    return *this;
+}
+
+double Vector::operator[](unsigned long i) const {
+    return coords_[i];
+}
+
+double &Vector::operator[](unsigned long i) {
+    return coords_[i];
+}
+
+Vector &Vector::operator+=(const Vector &B) {
+    for(unsigned long i = 0; i < n; i++) {
+        coords_[i] += B.coords_[i];
+    }
+    return *this;
+}
+
+Vector &Vector::operator-=(const Vector &B) {
+    for(unsigned long i = 0; i < n; i++) {
+        coords_[i] -= B.coords_[i];
+    }
+    return *this;
+}
+
+Vector &Vector::operator*=(double B) {
+    for(unsigned long i = 0; i < n; i++) {
+        coords_[i] *= B;
+    }
+    return *this;
+}
+
+Vector &Vector::operator/=(double B) {
+    for(unsigned long i = 0; i < n; i++) {
+        coords_[i] /= B;
+    }
+    return *this;
+}
+
+bool operator==(const Vector &left, const Vector &right) {
+    for(unsigned long i = 0; i < Vector::n; i++) {
+        if (left.coords_[i] != right.coords_[i]) {
+            return false;
+        }
+    }
+    return true;
+}
+
+Vector operator+(const Vector &left, const Vector &right) {
+    return Vector(left) += right;
+}
+
+Vector operator-(const Vector &left, const Vector &right) {
+    return Vector(left) -= right;
+}
+
+Vector operator*(const Vector &left, double A) {
+    return Vector(left) *= A;
+}
+
+Vector operator*(double A, const Vector &right) {
+    return right * A;
+}
+
+Vector operator/(const Vector &left, double A) {
+    return Vector(left) /= A;
+}
+
+double operator^(const Vector &left, const Vector &right) {
+    double dot = 0;
+    for(unsigned long i = 0; i < Vector::n; i++) {
+        dot += left.coords_[i]*right.coords_[i];
+    }
+    return dot;
+}
+
+Vector Vector::operator-() const {
+    return Vector(*this) *= -1;
+}
+
+bool operator!=(const Vector &left, const Vector &right) {
+    return !(left == right);
+}
+