### Some articles on *trigonometric*:

Cosec(x) - Computation

... The computation of

... The computation of

**trigonometric**functions is a complicated subject, which can today be avoided by most people because of the widespread availability of computers and scientific ... important contexts the historical use of**trigonometric**tables, the modern techniques used by computers, and a few "important" angles where simple exact values are easily ... The first step in computing any**trigonometric**function is range reduction—reducing the given angle to a "reduced angle" inside a small range of angles, say 0 to π/2, using the periodicity and symmetries ...Cosec(x) - Identities - Calculus

... For integrals and derivatives of

... For integrals and derivatives of

**trigonometric**functions, see the relevant sections of Differentiation of**trigonometric**functions, Lists of integrals and List of integrals of**trigonometric**functions ... Below is the list of the derivatives and integrals of the six basic**trigonometric**functions ...Trig - Common Formulas

... Certain equations involving

... Certain equations involving

**trigonometric**functions are true for all angles and are known as**trigonometric**identities ... These are listed in List of**trigonometric**identities ...Integration Using Euler's Formula

... may be used to evaluate integrals involving

... may be used to evaluate integrals involving

**trigonometric**functions ... Using Euler's formula, any**trigonometric**function may be written in terms of eix and e−ix, and then integrated ... technique is often simpler and faster than using**trigonometric**identities or integration by parts, and is sufficiently powerful to integrate any rational expression involving ...