***********FOR MATLAB***********

Write a local function lFactor(v,r) to calculate the Lorentz factor given as the following equation:

1

= 1/(1-(v^2/r^2))

Pass the v and r to the function as input arguments. Then call function for v=10^8 and r=310^8.

2. Write a separate function called pickone, which will receive one input argument x, which is a vector, and will return one random element from the vector. You need to test the following three cases: >> pickone(4:9)

ans = 5

>> disp(pickone(-3:0))

-1

>> help pickone

pickone(x) returns a random element from vector x