Automagic Forum

Hello,

If I try to execute the following operation in a script, I get not the expected result.

x=5/2;

The result is 2 instead of 2.5.

May be there is a simple reason for and it is easy to solve.

Instead of 5/2 try 5/2.0
worked for me.

Hi,

Automagic uses integer math when both operands are integers. You can avoid it by using a floating point number for the divisor or dividend:
x = 5/2.0;

Regards,
Martin

Edit: Question was asked twice, merged the two topics.

Strange, but it works. )
Thank you so much.

@Martin: On a slightly related question.. Should the 2.5 round up to 3 instead of 2? Or are the integer calculations only cropping decimals off?

Integer division is defined to round towards zero, the same is used in Java as well: 5/2-->2, -5/2-->-2

For rounding the result of an operation on integers, multiply one of the operation factors by 2. Add 1 to the result, then divide by 2.

For your example 5/2, this means, (2*5/2+1)/2.

This little trick is useful when you want to stick to integer operands, and not resort to using floats for a simple operation like rounding.