Calculate the sin and cos of a value in radians (in one function)?

I attempted to answer the question but I'm not sure if this is considered to be one function.

b = input('Enter a value ');

x=sin(b); y=cos(b);

disp('The sin of that value is ');

disp(x);

disp('The
cos of that value is '); 

disp(y);

[dpb]

That isn't a function at all, but a script...

Wrap the computational part in a function to be called and name it something appropriate--*sincos* might suit... :)

Answer 1

[KSSV]

function sincos()
b = input('Enter the angle value in radians: ');

x=sin(b); y=cos(b);
fprintf('The sin of value %f is %f\n',b,x);

fprintf('The cos of value %f is %f\n',b,y);

[Stephen23]

@Dr. Siva Srinivas Kolukula: Note that it is much more robust and secure to call input with its 's' option to return a string, this prevents evaluation of any arbitrary code that a user might enter, or from throwing unnecessary errors:

b = str2double(input('Enter the angle value in radians: ','s'));

[Guillaume]

To see the security implications of input consider that if you enter

rmdir('c:\', 's')

to input without an 's' option, it will attempt to remove every folder on your C: drive.

Answer 2

[Walter Roberson]

I speculate that the assignment is requesting that you build a series or taylor expansion that calculates sin and cos both.

http://people.math.sc.edu/girardi/m142/handouts/10sTaylorPolySeries.pdf