While function for finding the checking each elements in a vector of unknown length

Hello,

I am given a question to change the size of each elements in a vector. However, I don't know how to use a loop function like while function and if else function to check the sizes of each elements in the vector.

Can someone please help me solve this problem?

e.g. A = [44,55,24,63,74,76,55,87];

Determine whether each element in vector A is larger than 70, and if it is, subtract 10 and place the new value back to the vector. (its not the actual question. just made it up)

in this case, how do I create a function that checks each value and places the new value back to the vector?

Thank you.

[James Tursa]

What have you done so far? What specific problems are you having with your code? Do you know how to write a function? Do you know how to write a loop? Do you know how to write an if-test? Do you know how to use indexing?

Answer 1

[David Hill]

A-10*(A>70);

[madhan ravi]

Obviously it's homework. Giving hints is preferred rather than providing the complete solution.