zasin

function [fun,dfun,ifun,x0,m,C,Ax] = zasin
%---------------------------------------------------------------------------
%ZASIN   Taylor series coefficient lists for asin(x).
%        Pm(x) = c(1) + c(2)x + c(2)x^2 + ... + c(m+1)x^m
% Inputs
%   There are no inputs for this function.
% Return
%   fun    name of the function f(x)
%   dfun   name of the derivative f'(x)
%   ifun   name of the integral  f(x)dx
%   x0     point of expansion
%   m      degree of the polynomial
%   C      coefficient list of the polynomial
%   Ax     three asis vectors plotting f, f' and f
%
% NUMERICAL METHODS: MATLAB Programs, (c) John H. Mathews 1995
% To accompany the text:
% NUMERICAL METHODS for Mathematics, Science and Engineering, 2nd Ed, 1992
% Prentice Hall, Englewood Cliffs, New Jersey, 07632, U.S.A.
% Prentice Hall, Inc.; USA, Canada, Mexico ISBN 0-13-624990-6
% Prentice Hall, International Editions:   ISBN 0-13-625047-5
% This free software is compliments of the author.
% E-mail address:      in%"[e-mail]"
%
% Algorithm 4.1 (Evaluation of a Taylor Series).
% Section	4.1, Taylor Series and Calculation of Functions, Page 203
% Algorithm 4.2 (Polynomial Calculus).
% Section	4.2, Introduction to Interpolation, Page 212
% Algorithm 4.p (Pade rational Approximation).
% Section	4.6, Pade Approximations, Page 249
%---------------------------------------------------------------------------

x0 = 0; 
m = 25;
a = -0.999999;
b = 0.999999;
ymin = -pi/2;
ymax = pi/2;
ymin1 = 0;
ymax1 = 5;
ymin2 = 0;
ymax2 = 1;
Ax(1,:) = [a b ymin ymax];
Ax(2,:) = [a b ymin1 ymax1];
Ax(3,:) = [a b ymin2 ymax2];
fun = 'asin(x)';
dfun = 'sqrt(1 - x.^2).^(-1)';
ifun = '-1+sqrt(1 - x.^2) + x.*asin(x)';
C = [676039/104857600,
0,
88179/12058624,
0,
46189/5505024,
0,
12155/1245184,
0,
6435/557056,
0,
143/10240,
0,
231/13312,
0,
63/2816,
0,
35/1152,
0,
5/112,
0,
3/40,
0,
1/6,
0,
1,
0];