2019-03-03 05:46:04 +08:00
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const std = @import("../../std.zig");
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2019-02-09 07:18:47 +08:00
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const testing = std.testing;
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2018-04-24 15:18:31 +08:00
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const math = std.math;
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const cmath = math.complex;
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const Complex = cmath.Complex;
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2018-10-16 06:23:47 +08:00
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pub fn pow(comptime T: type, z: T, c: T) T {
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2018-04-24 15:18:31 +08:00
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const p = cmath.log(z);
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const q = c.mul(p);
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return cmath.exp(q);
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}
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const epsilon = 0.0001;
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test "complex.cpow" {
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const a = Complex(f32).new(5, 3);
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const b = Complex(f32).new(2.3, -1.3);
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const c = pow(Complex(f32), a, b);
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2019-02-09 07:18:47 +08:00
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testing.expect(math.approxEq(f32, c.re, 58.049110, epsilon));
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testing.expect(math.approxEq(f32, c.im, -101.003433, epsilon));
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2018-04-24 15:18:31 +08:00
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}
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