Floating point maths

[xigaro]

If I put this in a script...

 

default
{
  state_entry()
  {
    float example = 1/11;
    llSay(0, (string)example);
  }
}

 

....it returns "0.000000"

Why's that then?

[Dora Gustafson]

1 and 11 are integers and 1/11 becomes 0

Try 1.0/11.0 instead.

[xigaro]

Thank you! I come from a world of lazy scripting languages, types aren't familiar to me It makes sense now!

[Rolig Loon]

Because even though you have declared your variable example to be a float, the numbers 1 and 11 are not. They are integers.  If you divide an integer by an integer, the result is an integer rounded down to the nearest integer.  In this case,

1/11 = 0  .

If you want a realistic float result, write float example = 1.0/11.0;

1.0/11.0 = 0.090909090909

Edit:  Hah!   Dora is faster today.  :smileylol: