Trigonometry -- from Wolfram MathWorld
The study of angles and of the angular relationships of planar and three-dimensional figures is known as trigonometry. The trigonometric functions (also called the circular functions) comprising trigonometry are the cosecant cscx, cosine cosx, cotangent cotx, secant secx, sine sinx, and tangent tanx.
Free Trigonometry Tutorials and Problems - analyzemath.com
Free Tutorials, problems and self tests on trigonometry. Examples and problems with solutions are included.
Trigonometry Calculator - Carbide Depot
Enter all known variables (sides a, b and c; angles A and B) into the text boxes. To enter a value, click inside one of the text boxes.
Trigonometric functions - Wikipedia
In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are functions of an angle.They relate the angles of a triangle to the lengths of its sides.
Trigonometry - Maths Tutor
Pythagoras' Theorem and pizzas? The theorem is meticulously described here with an animation and extension material that brings the concept to real life (yes, using pizzas!).
Trigonometry Calculator - Solve ... - Solve Math Problems
Trigonometry, which studies the measure of triangles, takes algebra to the next level. Its most well-known features include the Pythagorean Theorem and the sine, cosine, and tangent ratios.
Sine, Cosine and Tangent - Maths Resources
Sine, Cosine and Tangent. Three Functions, but same idea. Right Triangle. Sine, Cosine and Tangent are the main functions used in Trigonometry and are based on a Right-Angled Triangle.
Aryabhata - Wikipedia
Aryabhata (IAST: Āryabhaṭa) or Aryabhata I (476–550 CE) was the first of the major mathematician-astronomers from the classical age of Indian mathematics and Indian astronomy.
Trigonometric identities. Topics in trigonometry.
Pythagorean identities. Sum and difference formulas. Double angle formulas. Half angle formulas. Products as sums. Sums as products.