How to do this?.. new to matlab

First hey to everybody :)

I am new with Matlab and we have to do for homework some programs to create but i don't know really how to do it.. I had been reading on other forums and youtube but didn't see anything usefull... I would be very grateful if somebody could write me this program to help me. Program:

I have to calculate function sin(x) with help of line on 6 decimals exactly and value compare with Matlab function. Do the same for cos(x)..

sin(x)=x/1!-x^2/3!+x^5/5!-x^7/7!+⋯ and cos(x)= 1-x^2/2!+x^4/4!-x^6/5!+⋯

Please if somebody can help :) Thank you in advance.

Andrej

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/8026-best-way-s-to-master-matlab

Answer 1

[Image Analyst]

Hint, create a variable called sinx that will be the sum of all the terms. Then sum the individual terms into it in a loop. Use factorial(n).

x = 1.234; % Whatever...
sinx = 0;
for k = 1 to 100
  sinx = sinx + x^  ...... % Use k and factorial(k).
end
fprintf('The value of sin(%f) = %f', x, sinx);

[androSLO]

hm... i have tried something but it doesn't work.. i understand what to write in line 4 for sinx..but what is with X? put i these numbers which have you gave me or how...because i am doing on matlab only for two days till now...

[Walter Roberson]

X would be the value whose sin() or cos() you were calculating.