Hi, I have a problem. Please help me!!!

Write a function called sindeg that takes a matrix input called deg. The function returns a matrix of the same size as deg with each of its elements containing the sine of the corresponding element of deg. Note that the elements of deg are given in degrees and not radians. As a second output, the function returns a scalar that contains the average value of the first output. You are not allowed to use the sind and cosd built-in functions, but the use of any other function is acceptable.

My answer is

function [sine, mean_sine] = sindeg(deg)
    sine = ;
    mean_sine = sum(sine) / length(deg);

I couldn't fill sine because I dont understand that. Please guide me about this.

[Cedric]

This could help (?)

 >> x = 1 : 5
 x =
     1     2     3     4     5

 >> x * 50
 ans =

    50   100   150   200   250

 >> x / (7*pi)
 ans =
    0.0455    0.0909    0.1364    0.1819    0.2274

also, you are allowed to use function SIN apparently.

[Ahmos Sansom]

You just need to convert the degrees to radians then...

https://en.wikipedia.org/wiki/Radian

    function [sine, mean_sine] = sindeg(deg)

      % Convert to radians
      my_radians = deg * pi/ 180.0;

      % Use the sin function
      sine = sin(my_radians);

      % Work out average
      mean_sine = mean(deg);

    end

[Walter Roberson]

Please do not close questions that have an answer.

Answer 1

[Debolina Mahapatra]

function [sine, mean_sine] = sindeg(deg)
      my_radians = deg * pi/ 180.0;
      sine = sin(my_radians);
      avg = (mean(sine));
      mean_sine = sum(avg) / length(avg);

This will hopefully solve the problem :)