hypot static method

Value hypot(Iterable<Object> arguments)

Creates a hypot() calculation with the given arguments.

Each argument must be either a SassNumber, a SassCalculation, an unquoted SassString, or a CalculationOperation. It must be passed at least one argument.

This automatically simplifies the calculation, so it may return a SassNumber rather than a SassCalculation. It throws an exception if it can determine that the calculation will definitely produce invalid CSS.

Implementation

static Value hypot(Iterable<Object> arguments) {
  var args = _simplifyArguments(arguments);
  if (args.isEmpty) {
    throw ArgumentError("hypot() must have at least one argument.");
  }
  _verifyCompatibleNumbers(args);

  var subtotal = 0.0;
  var first = args.first;
  if (first is! SassNumber || first.hasUnit('%')) {
    return SassCalculation._("hypot", args);
  }
  for (var i = 0; i < args.length; i++) {
    var number = args.elementAt(i);
    if (number is! SassNumber || !number.hasCompatibleUnits(first)) {
      return SassCalculation._("hypot", args);
    }
    var value =
        number.convertValueToMatch(first, "numbers[${i + 1}]", "numbers[1]");
    subtotal += value * value;
  }
  return SassNumber.withUnits(math.sqrt(subtotal),
      numeratorUnits: first.numeratorUnits,
      denominatorUnits: first.denominatorUnits);
}