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C# C# Basics (Retired) Perfect Doubles

Posted by Brad Bittner
Brad Bittner
724 Points

I was expecting float rather than double, now I'm wondering if I've been using float incorrectly all this time

Pretty self explanatory, I'm simply curious what the differences in data type (or rather the application of them) are between float and double. Embarassingly, I had never even heard of "double" before and I've been developing in Unity for some time, and never gave much thought to what float is, I just always knew it as "the type you need when you're using decimals" haha

2 Answers

markmneimneh
markmneimneh
14,132 Points
markmneimneh
markmneimneh
14,132 Points

Hello

please take a look here: https://www.tutorialspoint.com/csharp/csharp_data_types.htm

but in summary, double takes a much larger memory than float.

Michael Zdarsky
Michael Zdarsky
4,533 Points
Michael Zdarsky
Michael Zdarsky
4,533 Points

Doubles have a higher precision, but unity and your GPU typically deal with floats. I would stick with floats, until you are required to use a double, just for the sake of performance and changing variable types..