Use of arcsin in Trig.java (JavelinCode)
Ajenjo
Posts: 5
Greetings.
I've use the function arcsin in my code, but I don´t know how use it.
That is. I obtaint the correct result of the function usqrt in UnsignedIntMath.java (JavelinCode) dividing the return number by 256.
How I obtain the correct result of the funtion arcsin in Trig.java (JavelinCode)???? What steps I must follow????
Waiting for your help. Thanks so much.
I've use the function arcsin in my code, but I don´t know how use it.
That is. I obtaint the correct result of the function usqrt in UnsignedIntMath.java (JavelinCode) dividing the return number by 256.
How I obtain the correct result of the funtion arcsin in Trig.java (JavelinCode)???? What steps I must follow????
Waiting for your help. Thanks so much.
Comments
· /**
·· * Calculate arcsin(x)
·· * Returns angle in 1st or 4th quadrant
·· *
·· * @param x Sine value in 0.0001 units (-10000 to +10000)
·· * @return Angle in 0.1 degree units (-900 to +900)
·· */
Example,·sin(45.0 degrees)· = sin(450) = 10000*(0.7071) = 7071
arcsin(7071) = 450
Angles are specified in 0.1 degree units, so range is 0-3599, which represents 0.0-359.9 degrees
Sine values are specified in 0.0001 units, so range is 0-10000, which represent values 0.0000-1.0000
The javelin has no floating point, so integers are used to represent values as fixed point floating point.
regards peter
Post Edited (Peter Verkaik) : 7/2/2007 2:42:23 PM GMT