Finite Difference - Solve Block Syntax

[GPekmezi]

Hello and thanks for any help

1.
I am using the Finite Difference Method in Mathcad 13 to solve a differential equation. I have defined a range variable which goes from 1 to n, where n represents the number of dicretization points in the solution.

i:=1,2.. n

Is there any way I can keep the range variable in the solve block like this:

x+x[i-1]-x[i-1]=c

Or do I have to manually write each equation, replacing i with the appropriate number? This is what I had done before (my laptop crashed) and it worked perfectly. But if I want to change the value of n, or if I want to use any value of n greater than 10, this becomes an incredibly tedious task.

2.
The equation I am solving spans 4 pages horizontally. Is there any way to wrap it?

 

[philipoakley]

You can include an on error line to return zero (or whatever). The on error is on the programming toolbar.

Philip