
What are "tan" and "atan"? - Mathematics Stack Exchange
May 4, 2015 · 0 atan stands for "arc tangent." It is the inverse function of tangent - this means it undoes the tangent function. So atan (tan (30)) = 30.
Confusion about atan vs atan2 - Mathematics Stack Exchange
Feb 29, 2024 · Here is a graph of atan(m) and the graph of acos(1/sqrt(1+m^2)) Both produce identical values for positive slope m, but the second one returns only the positive branch of …
How does atan(1) * 4 equal PI? - Mathematics Stack Exchange
How does this give PI? On the second point, if I understand atan correctly, it takes a ratio of two sides, and returns the corresponding angle. That means that atan(1) is referring a situation …
What is the Arctangent of Tangent? - Mathematics Stack Exchange
simple solution... draw a graph of the tangent function. Then draw the arctan function on both an x-y graph and a y-x graph.
Is there any formula for $\operatorname {arctan} { (a+b)}$
Nov 2, 2021 · Is there any formula for $$\operatorname {arctan} { (a+b)}$$ I know couple of formulas for trigonometric functions. But I don't know if such formulas exists for inverse …
Atan2 Faster Approximation - Mathematics Stack Exchange
Jan 10, 2015 · I am using atan2(y, x) for finding the polar angle from the x-axis and a vector which contains the point (x,y) for converting Cartesian coordinates to polar coordinates. But, in my …
calculus - Asymptotic approximation of the arctangent?
Oct 20, 2014 · That is, I am looking for an algebraic function $f(x)$ that approximates $\\arctan x$ for large values of $x$. The approximation could be reasonably modest -- perhaps ...
trigonometry - How can one understand the ATAN2 () function for ...
Apr 3, 2018 · @Ahmed ATAN2 is just a version of ATAN that accepts the numerator and denominator separately so that it can select the correct quadrant for the angle.
Relative condition number of $x \mapsto \operatorname {atan} (x ...
Jun 9, 2022 · I'm trying to think through the sensitivity of atan2 to errors in its inputs and I've run into a disconnect that I don't quite understand. I know that you can compute the relative …
Taylor series expansion of arctan (x) around the point 0
Thus taylor(atan(x), x, 0, 9) will give you the same result as Wolfram Alpha. When you use arctan, Maxima simply returns the generic Taylor expansion of an unknown function, hence all the …