Differences

This shows you the differences between two versions of the page.

@@ Line 1: / Line 1: @@
+{{keywords>wiki library source code example reference}}
+===== fabs =====
+<code c>
+    double fabs(double);
+</code>
+calculates the absolute number of a given value
+===== C Sourcecode Example =====
+compile in linux with: gcc fabs.c -o fabs **-lm** -Wall
+<code c>
+#include <stdio.h> /* including standard library */
+//#include <windows.h> /* uncomment this for Windows */
+#include <math.h> /* including math library */
+int main ( void )
+{
+double y,x;
+x = 4.2422;
+y = -3284.2;
+printf("the fabs of 4.2422 is %f\n", fabs(x) );
+printf("and the fabs of -3284.2 is %f\n ", fabs(y) );
+return 0;
+}
+</code>
+==== output ====
+   output:
+   user@host:~$ ./fabs
+   the fabs of 4.2422 is 4.242200
+   and the fabs of -3284.2 is 3284.200000

on the occasion of the current invasion of Russia in Ukraine