from dan's math question

[anushree ari]

hi guys,
class K {
public static void main (String[] args) {
double radians = Math.PI/2;
double degrees = 90;
System.out.print((Math.sin(radians)==1.0)+",");
System.out.print((Math.sin(degrees)==1.0));
}
}
he ans is true, false, how?

[Sun LiWei]

sin(Math.PI/2) does not mean sin(90).
PI/2 != 90

[Dan Chisholm]

The argument to the trigonometric methods is the angle measured in radians. The purpose of this question is to verify that you know that the angle is not measured in degrees.

[anushree ari]

thx guys,
i got it,
thx