ROTATEPT.txt

ROTATEPT
not protected

If 0
Then
"IN:"
"J,K:POINT"
"&theta:ROTATION"
"OUT:"
"J,K:POINT"
"USED:"
"R,&theta"
End

If &theta=0
Return


If K=0
Then

If J>=0
Then
90+&theta->&theta
Else
&-90+&theta->&theta
End

Else
&arctan(J/K)+&theta->&theta
End

&squareroot(J&^2+K&^2)->R

If K>=0
Then
sin(&theta)*R->J
cos(&theta)*R->K
Else
&-sin(&theta)*R->J
&-cos(&theta)*R->K
End