(%i9) sin(%pi/6);
(%o9) 1/2
(%i10) sin(30);
(%o10) sin(30)
we have 30 degree =%pi/6 radian
the sin function is use radian.
how can I use degree in sin funciton
for example
I want input sin(30) =1/2
I wish the students can free input degree and they can get the sin function answer.
_________________________________________________________________
?H???? Windows Live Messenger ?M Hotmail?A???????a?x?????T???b???? ?X Windows Live for Mobile
http://www.msn.com.tw/msnmobile/