Math Computations
How to define a variable (string or integer) in MATLAB?
name = "Terry";
number = 2;
What is the result in MATLAB?
(35 + 25) / 5
12
What is the command for the sum of A = [1 2 3] and B =[2 3 4] and display the sum of the two arrays?
A=[1 2 3];
B =[2 3 4];
disp (A+B)
For the following MATLAB commands, what will X be? Are x and X the same variables?
x=10
X=x^2
X=100
no
What is the result in MATLAB ?
8 + 3 * 5
23
What is the command to divide each element of [12 18 24] by the corresponding element of [3 6 8] and display the solution?
A = [12 18 24];
B = [3 6 8];
disp(A ./ B)
What will the semi-colon do in the following MATLAB command? What is the result of x =10;?
To suppress the result and the result will not be shown in the command window.
What is the result in MATLAB?
(18 - 6) / (2 + 1) * 4
16
What is the command to subtract and display A= [2 4 6] from B=[10 10 10]?
A = [10 10 10];
B = [2 4 6];
disp(A - B)
What is the command to create [5 10 15 20 25], change the third value to 30, and display the array.
A = [5 10 15 20 25];
A(3) = 30;
disp(A)
What is the result in MATLAB?
(7 + 5)^2 / 9
16
What is the command to multiply and display the product of corresponding elements of A= [2 3 4] and B= [5 6 7]?
A = [2 3 4];
B = [5 6 7];
disp(A .* B)
What is the command to create [2 4 6 8 10], add 3 to every element, and display the result?
A = [2 4 6 8 10];
disp(A + 3)
What is the result in MATLAB?
(3^4 - 1) / 8
10