Trigo : javascript VS Math Expression = radians VS degres ;)

Perhaps i forget something, but i have just discovered that the javascript patch return Math.trigo functions in RADIANS while the math expression return DEGRES

ex with 90 as input :
With a Math expression patch : sin(90) =1 (degres)
With a javascript patch : Math.sin (90) = 0.8939966 (radians)

Both are correct, but when you convert code to expression or vice versa sometimes it can take time before you start to understand why it's not working ;)

So to have Math.sin in degres with javascript you have to do :
Math.sin(angle*(Math.PI/180))

As as I have lost 3 hours to understand it, I hope perhaps this will be helpful for someone :)