Suppose x takes on the values x  1, 1.2, 1.4, . . . , 5. Use MATLAB to compute the array y that results from the function y  7 sin(4x). Use MATLAB to determine how many

Suppose x takes on the values x = 1, 1.2, 1.4, . . . , 5. Use MATLAB to compute the array y that results from the function y = 7 sin(4x). Use MATLAB to determine how many elements are in the array y and the value of the third element in the array y.

[Dyuman Joshi]

This looks like a Homework problem. Show us what you have tried and answer a specific question.

If you aren't sure where to start because you're not familiar with how to write code in MATLAB, I suggest you start with the free MATLAB Onramp tutorial to learn the essentials of MATLAB.

Answer 1

[Pratheek]

The below code will help you to do all the task's you asked for.

x=1:0.2:5; 
y=7*sin(4*x);
num_elements=length(y);
third_element=y(3);