math.c

来自「里面包含很多c语言的源码」· C语言 代码 · 共 27 行

/* Demonstrates some of C's math functions */

#include <stdio.h>
#include <math.h>

int main( void )
{

    double x;

    printf("Enter a number: ");
    scanf( "%lf", &x);

    printf("\n\nOriginal value: %lf", x);

    printf("\nCeil: %lf", ceil(x));
    printf("\nFloor: %lf", floor(x));
    if( x >= 0 )
        printf("\nSquare root: %lf", sqrt(x) );
    else
       printf("\nNegative number" );

    printf("\nCosine: %lf\n", cos(x));
    return 0;
}