Fig 1: Trig Ratios Chart FIg 1 displays a chart that can be used to recall the six basic trigonometric ratios. The values of these six trigonometric ratios remain positive in the first quadrant of the xy-coordinate plane, and in one other quadrant. Their evaluated values are then negative ...
The Math & Trig functions in Excel are used for basic arithmetic, conditional sum & product, exponent & logarithm, and trigonometric ratios. Some math-related functions are found in the Statistical functions and Engineering functions categories. Here is an overview of the 51 most commonly used, ...
All of the approximations here are polynomials, or ratios of polynomials. All use very cryptic coefficients derived from Chebyshev series and Bessel functions. Rest assured that these numbers give minimum errors for the indicated ranges. Each approximation (with a few exceptions) has an error chart ...