This app has two section, first one is a complete trigonometric calculator and another is a complete list of trigonometric identities and formulas. • Trigonometric Calculator: Calculate Sine Function (sin), Cosine Function (cos), Tangent Function (tan), Cotangent Function (cot), Cosecant Function (csc) and Secant Function (sec) of angle • Inverse Trigonometric Calculator: Calculate Inverse Sine Function (arcsin), Inverse Cosine Function (arccos), Inverse Tangent Function (arctan), Inverse Cotan