Created
September 6, 2015 02:16
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Just a simple power function for an integer exponent. Just for fun.
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| def pow(x: Double, n: Int) : Double = { | |
| n match { | |
| case 0 => 1.0 | |
| case n if n < 0 => 1.0 / pow(x, Math.abs(n)) | |
| case n if (n & 0x1) == 0 => pow(x, n >> 1) * pow(x, n >> 1) | |
| case _ => x * pow(x, n - 1) | |
| } | |
| } |
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