Standard Libraries
Math #include <math.h> M_PI, M_E, M_SQRT_2 sin, cos, tan, asin, acos, atan, exp, log, floor, ceil
String #include <string.h> strlen, strcmp, strcpy.. These functions assume that the string ends with the null character ‘\0’ . Next lecture..
Input/Output #include <stdio.h> FILE, fopen,fclose, fprintf, fputc, fscanf, fgetc
Dynamic Memory Allocation #include <stdlib.h> abs, rand, atoi, atol, malloc, calloc, realloc (when we study pointers)