how can I solve this problem

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alhinai thuraiya
alhinai thuraiya 2016-10-10
回答： Guðmundur 2016-10-11
The cosine function can be evaluated by the following infinite series: cosx=1-(x^2)/2!+(x^4)/4!-(x^6)/6!+..... Write a MATLAB code to implement this formula in order to compute the value of cosx up to any n order term (i.e. x=pi/5,n=10)
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James Tursa
James Tursa 2016-10-10
What have you done so far? What specific problems are you having with your code?

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Guðmundur
Guðmundur 2016-10-11
n = 10;
x = pi/5;
m = 0:2:2*n;
s = ones(1,n+1);
s(2:2:end) = -1;
cosx = sum((x.^m./factorial(m)).*s);

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