    const std = @import("../../std.zig");
    const testing = std.testing;
    const math = std.math;
    const cmath = math.complex;
    const Complex = cmath.Complex;

    /// Returns z raised to the complex power of c.
    pub fn pow(comptime T: type, z: T, c: T) T {
        const p = cmath.log(z);
        const q = c.mul(p);
        return cmath.exp(q);
    }

    const epsilon = 0.0001;

    test "complex.cpow" {
        const a = Complex(f32).init(5, 3);
        const b = Complex(f32).init(2.3, -1.3);
        const c = pow(Complex(f32), a, b);

        try testing.expect(math.approxEqAbs(f32, c.re, 58.049110, epsilon));
        try testing.expect(math.approxEqAbs(f32, c.im, -101.003433, epsilon));
    }