A Little C Primer/C Math Library

This chapter discusses some useful standard C libraries: math library standard utility library the "sprintf()" function string function library character class test library And the following minor topics: command-line arguments dynamic memory allocation pointers to functions PC memory model and other declarations troubleshooting hints The math library requires the declaration: #include <math.h> The math functions consist of: sin( x ) Sine of x. cos( x ) Cosine of x. tan( x ) Tangent of x. asin( x ) Inverse sine of x. acos( x ) Inverse cosine of x. atan( x ) Inverse tangent of x. sinh( x ) Hyperbolic sine of x. cosh( x ) Hyperbolic cosine of x. tanh( x ) Hyperbolic tangent of x. exp( x ) Exponential function -- e^x. log( x ) Natural log of x. log10( x ) Base 10 log of x. pow( x, y ) Power function -- x^y. sqrt( x ) Square root of x. ceil( x ) Smallest integer not less than x, returned as double. floor( x ) Greatest integer not greater than x, returned as double. fabs( x ) Absolute value of x. All values are "doubles", and trig values are expressed in radians.