CODEWITHSUNDEEP
c#math
WHol
WHol

Reputation: 2286

I need an elegant way to normalize a scalar (sort of)

I have a float that can be any value on the positive or negative scale.

If the float is less than 1 or greater than -1 AND not 0, it needs to be rounded to 1 or -1.

I have a function I've made that does the trick but I have a feeling there is an elegant inline mathy way of doing this but I just cant come up with one.

[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static float NormalizeScalar(float input)
{
    if ((input > -1) && (input < 1))
        return (input == 0) ? 0 : (input < 0) ? -1 : 1;
    return input;
}

Any suggestions?

Upvotes: 1

Views: 674

Answers (1)

diiN__________
diiN__________

Reputation: 7656

Use Math.Sign(input).

If your input is 0.78 -> returns 1.

If it's 0 -> returns 0.

If it's -0.78 -> returns -1.

Upvotes: 3

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