User-defined functions problem

1.Create a user-defined function that calculates the p-norm value by entering vector x and p. (p uses a value of 1,2,inf) . User-defined function name is pnorm. If you enter a number other than 1,2, let's print the string 'error circles' (using switch).

2.Write a script file that outputs values of 1-norm , 2-norm , and inf-norm for x[1,-1,2,5,-6] using the functions written in question 1.

i don't know everything but i know one thing this problem is so hard to solve please explain this easy thx

[Kevin Phung]

ok, what have you tried?