instance method

Complex#abs2

() -> ::Numeric

abs2 → float

static VALUE
nucomp_abs2(VALUE self)
{
    get_dat1(self);
    return f_add(f_mul(dat->real, dat->real),
                 f_mul(dat->imag, dat->imag));
}

Returns square of the absolute value (magnitude) for self; see polar coordinates:

Example

Complex.polar(2, 2).abs2 # => 4.0

If self was created with rectangular coordinates, the returned value is computed, and may be inexact:

Example

Complex.rectangular(1.0/3, 1.0/3).abs2 # => 0.2222222222222222

See also #abs #angle #== #arg also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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