How do I get the square root of a double number value?

Archived Forums Questions & Answers
1

i am using big numbers, so I use a double variable, and mathf.sqrt does not work with doubles, is there another way?

3 Answers

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2

Hello there,

This thread might prove a good read for you.

Basically, use Math.Sqrt instead!

Hope that helps!

Cheers,

~LegendBacon

Damn you bacon for beeing faster than me

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It should work as you've written it. Whats the problem now?

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3

Hey there,

the Mathf.sqrt function is for floats as the Mathf indicates.

Using Math.Sqrt should work for doubles. In case that is not naturally in your script then append a using System; or just write System.Math.Sqrt();

hope this helps! Here is the link for the msdn reference.

thank you so much.

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Note that Unity's Mathf class is mostly a wrapper of the default .NET System.Math class with additional casting. See the [Sqrt implementation][1]. This is mainly for convenience since our main data type is float [1]: https://github.com/Unity-Technologies/UnityCsReference/blob/master/Runtime/Export/Mathf.cs#L47

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4

thank you so much.