×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Finite Difference - Solve Block Syntax

Finite Difference - Solve Block Syntax

Finite Difference - Solve Block Syntax

(OP)
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[i]+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?

RE: Finite Difference - Solve Block Syntax

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

Philip

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources