home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Language/OS - Multiplatform Resource Library
/
LANGUAGE OS.iso
/
f2c
/
may_5_92.lha
/
f2c.VMay_5_1992
/
libF77
/
cabs.c
< prev
next >
Wrap
Text File
|
1992-05-07
|
309b
|
22 lines
double cabs(real, imag)
double real, imag;
{
double temp, sqrt();
if(real < 0)
real = -real;
if(imag < 0)
imag = -imag;
if(imag > real){
temp = real;
real = imag;
imag = temp;
}
if((real+imag) == real)
return(real);
temp = imag/real;
temp = real*sqrt(1.0 + temp*temp); /*overflow!!*/
return(temp);
}