#include <cmath>float sqrt(float num);double sqrt(double num); long double sqrt(long double num); 

The sqrt( ) function returns the square root of num. If it is called with a negative argument, a domain error will occur.

Related functions are exp( ), log( ), and pow( ).

C(s)C++ Programmer's Reference
C Programming on the IBM PC (C Programmers Reference Guide Series)
ISBN: 0673462897
EAN: 2147483647
Year: 2002
Pages: 539

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