Can anyone give me a quick tip?
For example....how would I find the sine of 90 degrees?
+3
A:
You could use the Math.sin function where the argument is given in radians. Example:
double result = Math.sin(Math.PI / 3.0);
Darin Dimitrov
2010-02-27 23:30:27
Thanks! so Math.sin(90) should do it.
relyt
2010-02-27 23:31:21
No, it won't do it. The argument should be in radians. `Math.sin(Math.PI / 2)` should work.
Darin Dimitrov
2010-02-27 23:33:13
No it's in radians... so 90 deg = PI/2 rad
pjp
2010-02-27 23:33:27
Ah. Ok. Got it.
relyt
2010-02-27 23:33:49
+1
A:
http://java.sun.com/j2se/1.6.0/docs/api/java/lang/Math.html
It has a sin(double) method among other mathematical functions. It takes the angle in radian, so you'd have to do the conversion from degree. For that purpose (and others), Math also has the PI constant.
polygenelubricants
2010-02-27 23:30:40
-1 as mentioned in other comments, the sin() method takes the angle in radians, not degrees.
Grundlefleck
2010-02-27 23:35:57
+2
A:
A few tips for you:
- Math#sin() function, which takes angle in radians,
- radian = pi / 180 degrees
What if you combine these two tips?
Grzegorz Oledzki
2010-02-27 23:32:05
+7
A:
The Sin function expects radians.
I think you should use Math.sin(Math.toRadians(90))
wcm
2010-02-27 23:35:39