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As a line segment, an external secant of a circle has one endpoint on the circumference, and then extends radially outward.

Mar 5, 2025 · The exsecant is a little-used trigonometric function defined by exsec (x)=secx-1, (1) where secx is the secant. The exsecant can be extended to the complex plane as illustrated …

We learn why graphs of tan, cot, sec and cosec have a periodic gap in them (also known as a discontinuity). We learn how to sketch the graphs.

Nov 25, 2023 · exsec(θ) = sec(θ) − 1 e x s e c (θ) = sec (θ) − 1. Haversine is literally just half of versine. Why and how are these functions needed over the six basic trig functions? I think it's …

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May 28, 2021 · Analyze the graphs of y = secx and y = cscx. Graph variations of y = secx and y = cscx. The secant function was defined by the reciprocal identity secx = 1 cosx. Notice that the …

Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, p. 78, 1972.

Thus, a table of the secant function would need a very high accuracy to be used for the exsecant, making a specialized exsecant table useful. Even with a computer, floating point errors can be …

We’ll use the Secant Approximation mathlet to look at a few examples. Use the dropdown menu in the lower left corner to select the function f(x) = 0.5x3 − x. Use the red and yellow sliders to …