sine approximation using a loop

Question

Yogesh Bhambhwani 2020-9-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/602728-sine-approximation-using-a-loop

编辑： Walter Roberson 2020-10-1

https://grader.mathworks.com/courses/20611-cmpsc-200-section-003-fa20/problems/214057-sine-approximation-loop-selection-factorial/solutions/new?based_on=32876101

The link above should have my work on it could someone help explain what I am doing wrong.

2 个评论
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James Tursa 2020-9-30

Please post your code here and ask specific questions about it.

Yogesh Bhambhwani 2020-9-30

编辑：Walter Roberson 2020-10-1

在 MATLAB Online 中打开

%% Problem 3.2 Template

%{

test cases:

x = 0.2; N = 7; -> s = 0.198669330795061

x = 1.85; N = 4; -> s = 0.960597005280723

%}

function [s] = prob3_2(x,N)
% function [s] = prob3_2(x,N)
% takes a scalar angle measure x (in radians) and estimates sin(x) using
% the first N terms of an alternating series
format long
%edit below this line ---------------------
x = pi/2;
error = 1;
n = 1;
count = 0;
while error >= 1*(10^-3);
    count = count+1;
    terms(count) = (-1)^(count+1)*(x^n)/factorial(n);
    s = sum(terms);
    n=n+2;
    error = abs((sin(x)-s)/sin(x))*100;
end
disp(s)
%edit above this line ----------------------
return