What built-in definition does i have?

You have plotted values of cosine from -10 to 10 and want to change the x-axis tick marks to every pi, from -3pi to 3pi. Which statement will do that?

Which function CANNOT be used to randomly sample data?

What is true of a handle class object?

Which statement could create this cell array? c = {["hello world"]} {1×1 cell} {["goodbye"]} {1×3 double}

Which choice adds b to each row of a? a = ones(4, 4); b= [1 2 3 4];

What is a difference between global variable and persistent variables?

For a 5 x 5 array, the two subscript index (4,2) indexes the same location as linear index ___.

Which command will create a 10-element vector v with values from 1 to 10?

If you run this piece of code, you will get an error. Why? a = [0 1 2 3; 4 5 6 7]; a = a^2;

Where in the UI can you see what variables have been created, their values, and their class?