turbo c

DiarmaidGNR

Hi all!

Is it possible to use trigonometry functions in turbo c? ie. SIN COS TAN
Just my program has equations using these and turbo c is failing to recognise them.

dazberry

Yes are you #including <math.h> ?

D.

//edit: btw: they are lowercase, i.e. cos not COS etc.

DiarmaidGNR

tried that already but still no joy

Biffo The Bare

Heres an old example

#include “stdio.h”
#include “Math.h”
#include “graphics.h”
int main()
{
double i,cone,redian=22.0/(7.0*180.0);
int gdriver = DETECT, gmode, errorcode;
initgraph(&gdriver,&gmode,”f:\\tc\\bgi”);//Here is the path of the egevge file.
//—2 lines for axais.
line(50,50,50,400);
line(50,220,550,220);
for(i=50.0,cone=0;i<550.0;i=i+.1,cone=cone+.1)
{
putpixel(i,220-((sin(cone*redian))*50),2); //for sine
putpixel(i,220-((cos(cone*redian))*50),3); //for cos
putpixel(i,220-((tan(cone*redian))*50),5); //for tan
delay(3);
}
delay(2000);
return 0;
}

Genghiz Cohen

cosf & sinf maybe?

fasty

why not open the math.h file and search for sin/cos/whatever?

DiarmaidGNR

I found the problem, - I had INT MAIN (VOID) at the start of the program insted of MAIN () .


Thankyou all for the help

Biffo The Bare

If you need error checking, its advisible to keep the int.