Strange Problem

if(personality == 0){

pangle = Math.atan((pz - z)/(px - x));

temp = Math.toDegrees(pangle);

System.out.println(temp);

}

Will output the correct angle.

publicvoid update(float px,float py,float pz){

if(personality == 0){

pangle = Math.atan((pz - z)/(px - x));

temp = Math.toDegrees(pangle);

System.out.println(temp);

x = (float)(x + (SPEED * Math.cos(pangle)));

if((temp == 90) || (temp == 270)){

x = x;

}

z = (float)(z + (-1 * (SPEED * Math.sin(pangle))));

y = y;

}

Outputs NaN for the angle? Why is this. To me this is extremely strange since i have changed nothing before the output statement, only after it.

Any help would be greatly appreciated!

[1340 byte] By [NickyP101a] at [2007-10-2 13:22:15]