Computer Programming with C

1-14

Computer Programming with C

math.h: is le contains all mathematical and other useful functions. e commonly useful func-

tions from this les are floor(), abs(), ceil(), pow(), sin(), cos() and tan(). e list

of commonly used header les are given in Table 1.2

Sr. No. Header File Functions Function Examples

1.

stdio.h

Input, output and le operation functions

printf(), scanf()

2.

conio.h

Console input and output functions

clrscr(), getche()

3.

alloc.h

Memory allocation-related functions

malloc(), realloc()

4.

graphics.h

All graphic-related functions

circle(), bar3d()

5.

math.h

Mathematical functions

abs(), sqrt()

6.

string.h

String manipulation functions

strcpy(), ...