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l___jl 2002-08-21
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acos()
Example
/* ASINCOS.C: This program prompts for a value in the range
* -1 to 1. Input values outside this range will produce
* _DOMAIN error messages.If a valid value is entered, the
* program prints the arcsine and the arccosine of that value.
*/
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
void main( void )
{
double x, y;
printf( "Enter a real number between -1 and 1: " );
scanf( "%lf", &x );
y = asin( x );
printf( "Arcsine of %f = %f\n", x, y );
y = acos( x );
printf( "Arccosine of %f = %f\n", x, y );
}
Output
Example
/* ASINCOS.C: This program prompts for a value in the range
* -1 to 1. Input values outside this range will produce
* _DOMAIN error messages.If a valid value is entered, the
* program prints the arcsine and the arccosine of that value.
*/
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
void main( void )
{
double x, y;
printf( "Enter a real number between -1 and 1: " );
scanf( "%lf", &x );
y = asin( x );
printf( "Arcsine of %f = %f\n", x, y );
y = acos( x );
printf( "Arccosine of %f = %f\n", x, y );
}
Output
azuo_lee 2002-08-21
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double acos(double); /* declared in <math.h> */
