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Math.com Trig Overview (Site not responding. Last check: ) |
 | | Under its simplest definition, a trigonometric (literally, a "triangle-measuring") function, is one of the many functions that relate one non-right angle of a right triangle to the ratio of the lengths of any two sides of the triangle (or vice versa). |
 | | Furthermore, the functions are usually abbreviated: sine (sin), cosine (cos), tangent (tan) cosecant (csc), secant (sec), and cotangent (cot). |
 | | Therefore, the tangent function is the same as the quotient of the sine and cosine functions (the tangent function is still fairly handy). |
| www.math.com /tables/algebra/functions/trig/overview.htm (886 words) |
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