Substract two elements in an array

Dear MatLab comunity,

I have an array of 8 elements i.e.:

X=[5.03690000000000 5.03140000000000 5.02640000000000 5.02520000000000 5.02370000000000 5.02350000000000 5.02300000000000 5.02310000000000]

I want to subtract the first value from the last value and store it in a variable.

How can I do it? It should be pretty simple, I apologize in advance for that.

Best,

Alex

Answer 1

[KSSV]

iwant = X(end)-X(1)