Exam 15: Matlab

Find the corresponding MATLAB output: \gg=[2,3,4,5;1,-3,-7,4;2,3,2,1] \gg() ans =

The following matrices have already been defined in MATLAB: $A = \left[ \begin{array} { c c c c } 2 & 4 & 10 & 13 \\16 & 3 & 7 & 18 \\8 & 4 & 9 & 25 \\3 & 12 & 15 & 17\end{array} \right] \quad B = \left[ \begin{array} { c c c c } - 1 & 3 & - 5 & 10 \\6 & 13 & 11 & - 5 \\- 3 & 12 & 0 & 2 \\2 & 12 & - 5 & 8\end{array} \right]$ What would be the outputs of the following MATLAB inputs: - $\gg \mathrm { B } ( : , 3 : 4 )$

W What does the following MATLAB function do? $~~~~~\log 2 ( \mathrm { x } )$ a. returns the value of base-2 logarithm of $x$ . b. returns the value of base-10 logarithm of 2 and assigns it to $x$ . c. returns the value of common $\log$ of $2 x$ . d. returns the value of natural logarithm of 2 and assigns it to $x$ .

If you define $\mathbf { x } = 2 / 3$ , and then type $\mathbf { format~ short}$ , how will the value of $\mathbf { x }$ be displayed? a. $x = 0.66666666667$ b. $x = 0.6667$ c. $x = 0.67$ d. $x = 2 / 3$

If you define $\mathbf {x = 2 / 3}$ , and then type $\mathbf {format ~bank}$ , how will the value of $\mathbf { x }$ be displayed? a. $\mathrm { x } = 0.66666666667$ b. $x = 0.6667$ c. $x = 0.67$ d. $x = 2 / 3$

Shown below are MATLAB inputs.Complete each output: \ggA=[1:4]; \ggB=3.*A \ggB=

The following matrices have already been defined in MATLAB: $A = \left[ \begin{array} { c c c c } 2 & 4 & 10 & 13 \\16 & 3 & 7 & 18 \\8 & 4 & 9 & 25 \\3 & 12 & 15 & 17\end{array} \right] \quad B = \left[ \begin{array} { c c c c } - 1 & 3 & - 5 & 10 \\6 & 13 & 11 & - 5 \\- 3 & 12 & 0 & 2 \\2 & 12 & - 5 & 8\end{array} \right]$ What would be the outputs of the following MATLAB inputs: - $\gg \mathrm { A } ( : , 3 )$

The following matrices have already been defined in MATLAB: $A = \left[ \begin{array} { c c c c } 2 & 4 & 10 & 13 \\16 & 3 & 7 & 18 \\8 & 4 & 9 & 25 \\3 & 12 & 15 & 17\end{array} \right] \quad B = \left[ \begin{array} { c c c c } - 1 & 3 & - 5 & 10 \\6 & 13 & 11 & - 5 \\- 3 & 12 & 0 & 2 \\2 & 12 & - 5 & 8\end{array} \right]$ What would be the outputs of the following MATLAB inputs: - $\gg \mathrm { B } ( 2 : 3,2 : 4 )$

Shown below are MATLAB inputs.Complete each output: \gg=[10:-2:0]; \gg=0./ \gg=

W Which of the following MATLAB commands would calculate the value of $e ^ { x }$ ? a. $\mathrm { e } ^ { \wedge } \mathrm { x }$ b. $\exp ( \mathrm { x } )$ c. $\exp ^ { \wedge } \mathrm { x }$ d. exponent $( \mathrm { x } )$