Okay, This could be the easiest math question on here... but I'm going to ask the dumb question anyway. I have several coordinate points to solve for, and in each case I subtract the same amount from the previous "x" to get the next "x" value (X2...3...4...5...). The only point where I subract a different value is X1. The rest have a constant rate of change (derivative?). Example: 1.) X1 = (some vaule) – 30’ 2.) X2 = (X1 – 60’), X3 = (X2 – 60’), X4 = (X3 – 60’), X5 = (X4 – 60’), X6 = (X5 – 60’) There has to be a simple mathematical formula, other than this sloppy one. Any help would be great.
like Mark44 said this is an arithmetic progression Here the difference between two terms(of the sequence) is equal T_{n}=a+(n-1)d where a is the first term and d is the difference between two terms(d=T_{2}-T_{1})