Need help with this matlab program part a and b ASAP with detail thank you !

MATLAB allows the user to create his own functions. To create a function newfun a text file must be created with the same filename as the function and the extension m, ie newfun.m. The first line of this file has the form: function [out1,out2]-newfun (inl, in2) output variable list input variable list function name We note that any number of input and output variables can be used. As an example, the following file oddeven.m defines the function oddeven that returns the odd-numbered and even-numbered elements of an arbitrary length vector. function [oddels, evenels]-oddeven(v,) oddels-v(1:2:1ength(v)); evenels-v(2:2:length(v)); a) Sinusoidal waveform generator. Let sinegen be a function whose output is a sine wave y(t)-sin(2ft). The inputs to the function should be the frequency f and the time vector t. Create the sinegen function i.e. the sinegen.m file). (b) Use sinegen to generate a sine wave with t ranging from 0 to 0.2 in 0.001 increments, and a frequency of 20 Hz. Plot the sine wave obtained in the output