# While loop homework problem

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For any number between -1 and 1, your program calculates and outputs the arccosine and arcsine of the number in both degrees and radians. (Example: if you enter 0, arccosine is either 90 degrees or π/2 radians, and 270 degrees or 3π/2 radians.) For your convenience, your answers can be between 0 and 180 degrees (π).

This is what I've been doing. I know its wrong...The thing is it has to be like beginner MATLAB level language. i=-1;

while i<=1

i=asin(i)

i=asind(i)

i=acos(i)

end n=-1

##### 1 Comment

William
on 11 Oct 2011

### Accepted Answer

Harry MacDowel
on 11 Oct 2011

I felt a bit bored so I do the coding for you. Also I might have use for this in near future. Just run arcCosSin in command window.

Next time try a bit harder to do the homework yourself. You could get a lot of Matlab programming tips through Google.

function [] = arcCosSin()

% Written by GLO on 11.Oct.2011

inputnum = input('Please Enter a number between -1 and 1 for the arcCos and arcSin: ');

if (inputnum<-1 || inputnum>1)

fprintf('\nThis program only gives the answer for input between -1 and 1\n');

else

sinDeg = asind(inputnum);

sinRad = asin(inputnum);

cosDeg = acosd(inputnum);

cosRad = acos(inputnum);

fprintf('ArcSin in Degree is: %0.2f\n',sinDeg);

fprintf('ArcSin in Radian is: %0.5f\n',sinRad);

fprintf('ArcCos in Degree is: %0.2f\n',cosDeg);

fprintf('ArcCos in Radian is: %0.5f\n',cosRad);

end

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