# Arctan

### ARCT AN

EXAMPLES LET A = ARCTAN(-2) LET A = ARCTAN(A1) LET X2 = ARCTAN(X1-4) DEFAULT None SYNONYMS None RELATED COMMANDS ARCCOS = Compute arccosine. ARCCOSH = Compute hyperbolic arccosine.

### A Sequence of Polynomials for Approximating Arctangent

NOTES Edited by William Adkins A Sequence of Polynomials for Approximating Arctangent Herbert A. Medina 1. INTRODUCTION. The Taylorseries arctan x = x − x 3 3 + x 5 5 −+···= ∞ * k =0 ( −1 ) k 2 k +1 x 2 k +1 was discovered by the Scotsman James Gregory in 1671[ 1 , chap. 12].

### PROPERTIES OF ARCTAN(Z)

In general the larger N becomes the more rapidly the infinite series for arctan(z) will converge. Thus the series for (π/8) =arctan{ 1/[1+sqrt(2)]} reads -

### CALCULUS WITH THE INVERSE TRIGONOMETRIC FUNCTIONS

Since θ = arctan ( B/x ) - arctan ( A/x ) , d ...

### A Taylorseriesfor the functionarctan

arctan.DVI. A Taylorseriesfor the functionarctan The integral Ifweinverty=arctan(x) to obtainx=tany, then, by differentiating with respect toy, we finddx/dy=sec 2 y=1+tan 2 y=1+x 2.

### A Direct Proof of the Integral Formula for Arctangent

Since the area of a sector of a circle of radius r and angle (in radians) is the total area of this shaded region is Arctan a . We shall show that these two shaded regions have equal areas.

### CodeVisionAVR V2 Standard Features

CodeVisionAVR V2 Standard Features • Application that runs under Windows® 2000, XP, Vista and Windows 7, 32bit and 64bit • Easy to use Integrated Development Environment and ANSI C compatible Compiler • Editor with auto indentation, syntax highlighting for both C and AVR assembler ...

### Derivative of arctan(x)

MIT OpenCourseWare http://ocw.mit.edu 18.01SC Single Variable Calculus Fall 2010 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .

### Efficient Approximations for the Arctangent Function

FOUR QUADRANT APPROXIMATIONS The arctan algorithms presented thus far are applicable for angles in the range of − π/ 4to π/ 4rad. Here we extend the angular range to − π to π radians.