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instance method

Numeric#i

num.i → Complex(0, num)

static VALUE
num_imaginary(VALUE num)
{
    return rb_complex_new(INT2FIX(0), num);
}

Returns the corresponding imaginary number. Not available for complex numbers.

Example

-42.i  #=> (0-42i)
2.0.i  #=> (0+2.0i)

See also #floor #imag #finite? #imaginary also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1