MATLAB Envinronment Intro

Which MATLAB instructions are wrong?

• zeta = 12 + 5

• 1 + 1 = two;

• 50_deg = 0.8

• frac = 7/8

Pick the correct value of the variable var1, if the following set of instructions is executed:

>> delta = 8;

>> var1 = delta/2;

>> delta = 5;

>> var_1 = delta*2;

• 10

• 5

• 4

• 3.14

Given the MATLAB expression 6+6*6-4, select the correct result delivered by MATLAB.

• ans = 38

• ans = 68

• ans = 18

• ans = 88i

Please select all valid variable names in MATLAB syntax.

• amber4

• _sysVar

• 2arcTan

• nUmElE_tau_de_azi_il_voi_UITA

Which variables will remain in MATLAB Workspace after the execution of left side code lines

• x

• y

• ans

• xy

TRUE or FALSE?

Running the left side command in MATLAB Command Window, MATLAB displays only 4 digits after the period. True or false that in MATLAB memory the number is saved also with only 4 digit precision.

• FALSE

• TRUE

Select the MATLAB commands that will delete all variables from MATLAB Workspace.

• clear

• clc

• delete

• clear all

Being declared the variables a, b, c, d, e. Select the equivalent MATLAB expressions.

• x = a + b + c + d + ...

  e;

• x = a + b + c + d + e;

• x = a +

  b +

  c +

  d +

  e ;

• x = a + b +

  c + d + e;

Select the component that is not part of the MATLAB Environment.

• Command Window

• Workspace

• Figure Window

• Surface Window

Using MATLAB command doc select the MATLAB function that computes the tangent of the angle in degrees.

• tandeg

• tand

• tgDeg

• degtan