#include <syslib.h>
#include <math.h>

main()
{
	float x;
	clrscr();        // clear screen
	textmode ( 0x00 );  // 6 lines per LCD screen

	printf ( "ln(e)=%f\n", log ( M_E ) );  // M_E is 2.71828..., defined in math.h

	getchar();
	return 0;
}