Euler's identity: Difference between revisions

As complex numbers are not built in, we create a bare-bones Complex class with only the methods we need to complete this task.

<lang ecmascript>class Num2 {

static exp(x) {

var e = 2.718281828459045

return e.pow(x)

}

}

class Complex {

construct new(real, imag) {

_real = real

_imag = imag

}

real { _real }

imag { _imag }

+ (other) { Complex.new(_real + other.real, _imag + other.imag) }

exp {

var re = Num2.exp(_real)

return Complex.new(re * _imag.cos, re * _imag.sin)

}

toString { (_imag >= 0) ? "%(_real) + %(_imag)i" : "%(_real) - %(-_imag)i" }

static one { Complex.new(1, 0) }

}