Example of C++ Mathematical Functions
C++ program to illustrate some of the above-mentioned functions:
C++
// C++ program to illustrate some of the// above mentioned functions#include <iostream>#include <math.h>using namespace std;int main(){ double x = 2.3; cout << "Sine value of x=2.3 : " << sin(x) << endl; cout << "Cosine value of x=2.3 : " << cos(x) << endl; cout << "Tangent value of x=2.3 : " << tan(x) << endl; double y = 0.25; cout << "Square root value of y=0.25 : " << sqrt(y) << endl; int z = -10; cout << "Absolute value of z=-10 : " << abs(z) << endl; cout << "Power value: x^y = (2.3^0.25) : " << pow(x, y) << endl; x = 3.0; y = 4.0; cout << "Hypotenuse having other two sides as x=3.0 and" << " y=4.0 : " << hypot(x, y) << endl; x = 4.56; cout << "Floor value of x=4.56 is : " << floor(x) << endl; x = -4.57; cout << "Absolute value of x=-4.57 is : " << fabs(x) << endl; x = 1.0; cout << "Arc Cosine value of x=1.0 : " << acos(x) << endl; cout << "Arc Sine value of x=1.0 : " << asin(x) << endl; cout << "Arc Tangent value of x=1.0 : " << atan(x) << endl; y = 12.3; cout << "Ceiling value of y=12.3 : " << ceil(y) << endl; x = 57.3; // in radians cout << "Hyperbolic Cosine of x=57.3 : " << cosh(x) << endl; cout << "Hyperbolic tangent of x=57.3 : " << tanh(x) << endl; y = 100.0; // Natural base with 'e' cout << "Log value of y=100.0 is : " << log(y) << endl; return 0;} |
Output
Sine value of x=2.3 : 0.745705 Cosine value of x=2.3 : -0.666276 Tangent value of x=2.3 : -1.11921 Square root value of y=0.25 : 0.5 Absolute value of z=-10 : 10 Power value: x^y = (2.3^0.25) : 1.23149 Hypotenuse having other two sides as x=3.0 and y=4.0 : 5 Floor value of x=4.56 is : 4 Absolute value of x=-4.57 is : 4.57 Arc Cosine value of x=1.0 : 0 Arc Sine value of x=1.0 : 1.5708 Arc Tangent value of x=1.0 : 0.785398 Ceiling value of y=12.3 : 13 Hyperbolic Cosine of x=57.3 : 3.83746e+24 Hyperbolic tangent of x=57.3 : 1 Log value of y=100.0 is : 4.60517
C++ Mathematical Functions
C++ being a superset of C, supports a large number of useful mathematical functions. These functions are available in standard C++ to support various mathematical calculations.
Instead of focusing on implementation, these functions can be directly used to simplify code and programs. In order to use these functions you need to include a header file- <math.h> or <cmath>.