Long decimals

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- mataza
- - Joined 11 Jun, 2007
  - 11 topics • 31 posts
- 1
- 12 Nov, 2007
- Quote
I create a new dx9 game, and added a sprite with the variable 'Time'. I need to increment this value by 0.1 by pressing the up arrow. I made a text object, and always set its text to my sprite's private variable 'Time'. The number that it displayed when 0.1 was added was: 0.100000001490116 <img src="{SMILIES_PATH}/icon_confused.gif" alt=":?" title="Confused" /> .
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- Ashley Construct Team Founder
- Moderator
- - Joined 21 May, 2007
  - 669 topics • 30,331 posts
- 1
- 12 Nov, 2007
- Quote
Floating point numbers aren't 100% precise. The solution would be to display your number to only a certain number of decimal places, using the Format Decimal Number system expression:

FormatDecimal(Sprite('Time'), 6)

would give the number to 6 decimal places, which in the above case, is about the range of accuracy.