4s4v1n/Math

Implementation of some functions from the standard library <math.h>

Math

This project presents the implementation of some functions of the standard library <math.h>. Most are implemented using Taylor series and the least squares method. A balance has been chosen regarding the accuracy of the obtained values ​​and the speed of the functions.

Contents of the library

1. long double my_sin(double x) - returns sin(x).
2. long double my_cos(double x) - returns cos(x).
3. long double my_tan(double x) - returns tan(x).
4. long int my_abs(int abs) - returns |x| for long int.
5. long double my_fabs(double x) - returns |x| for long doubles.
6. long double my_atan(double x) - returns atan(x).
7. long double my_asin(double x) - returns asin(x).
8. long double my_acos(double x) - returns acos(x).
9. long double my_floor(double x) - returns the nearest integer <= x.
10. long double my_sqrt(double x) - returns the square root of x.
11. long double my_log(double x) - returns ln(x).
12. long double my_pow(double x, double y) - returns x^y.
13. long double my_ceil(double x) - returns the nearest integer greater than x.
14. long double my_fmod(double x, double y) - returns the remainder after dividing x by y.
15. long double my_exp(double x) - returns e^x.

Additionally, common constants for calculations are set, such as ln2, pi/2, pi, etc.

All source files and makefile are in the src folder. Building is done with gcc version 9.4.0 using a makefile on Linux.