Java tutorial
strictfp class TrigFun { public static void main(String[] args) { double rads, degs, tanA, coTanA; // Obtain angle in degrees from user degs = 120d; // Convert degrees to radian rads = Math.toRadians(degs); // Calculate tangent tanA = Math.tan(rads); System.out.println("Tangent = " + tanA); // Calculate cotangent coTanA = 1.0 / Math.tan(rads); System.out.println("Cotangent = " + coTanA); // Calculate arc-tangent rads = Math.atan(tanA); degs = Math.toDegrees(rads); System.out.println("Arc tangent: " + degs); // Calculate arc-cotangent rads = Math.atan(1 / coTanA); degs = Math.toDegrees(rads); System.out.println("Arc cotangent: " + degs); } }