Where is Arcsin?

[Novo]

Umm... Clientside doesn't have arcsin/arccos function! Why is that?

Temp Solution:

PHP Code:

function arcsin( i )
  {
  temp.step = 1 / 10000;
  for ( j = 0; j < abs(i); j += temp.step )
    temp.sum += (1 / (1 - j^2)^0.5) * temp.step ;
  return temp.sum;
  } 


=] Actually... That's only a rough estimation. To get a more accurate answer, one would have to make the steps an infinitely small size... But there is a loop limit to Graal!

[Admins]

PHP Code:

function arcsin(val) return arctan(val/((1-val^2)^0.5)); 


You can 'easily' calculate arcsin and arccos using the arctan function, but in the recent versions arcsin and arccos are also built-in functions (it is in my version but not in the public version yet).