Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.3)
// Compass (v1.0.0.alpha.18)
// ----

@function inverse($number) {
  $unit: 0 * $number + 1;
  @if unit($unit) == "%" {
    @return percentage(100 / ($number / $unit));
  }
  @return 1 / ($number / $unit) * $unit;
}

i {
  i: inverse(50%);
  i: inverse(1.6em);
  i: inverse(3);
}

SassMeister-output.css

i {
  i: 200%;
  i: 0.625em;
  i: 0.33333;
}