tan method

Complex tan()

Calculates the complex tangent function (tan(z)).

Formula: tan(z) = sin(z) / cos(z). Raises ArgumentError if cos(z) is zero

Implementation

Complex tan() {
  final s = sin();
  final c = cos();
  if (c == zero) {
    throw ArgumentError('Tangent is undefined: division by zero.');
  }
  return s / c;
}