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tan functions

 
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elevationsnow



Joined: 10 Sep 2005
Posts: 22
PostPosted: Sat Sep 10, 2005 2:24 pm    Post subject: tan functions Reply with quote
need help using atan2 function
code so far just excerpts
Code:

#include <math.h>

#define PI 3.14159265

    while(1){
         sceCtrlReadBufferPositive(&pad, 1);
         x= pad.Lx - 130;
         y= pad.Ly - 130;
         rotation = float atan2 (x,y) /(PI/180);
         for(loop=0; loop < 10; loop++){
         printf("rotation: %i",rotation);
         }
    }




what it should do:
find the rotation of the analog stick just for testing purposes

error codes:
undefined reference to atan2
error 1
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Agoln



Joined: 08 Jun 2005
Posts: 326
Location: Fort Wayne, IN
PostPosted: Tue Sep 13, 2005 2:53 am    Post subject: Reply with quote
did you link in the math library? (-lm)
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