$($

b

$)$

$$Matlab lets you easily create more complicated functions from simpler, built

$-$

in

ones like sin

$,$

$$log or sqrt

$.$

$$Write another function, my

$-$

f un

$,$

$$which returns the

value of

$$

$$

$$

$$given an input

$$

$.$

$$The function my

$\_$

fun should be a function of

$$

only. The input

$$

$$could be a vector.