×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*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.

# What does [2,1] mean?

## What does [2,1] mean?

(OP)
Hello,
using a function with a vector I get a result showing a column with "[2,1]", propably with the size of the vector.
I didn't find anything about that within the help or documentation.
Could anyone explain that?
Thanks
Bernds59

### RE: What does [2,1] mean?

The 2 is the answer ofr the first element of your array, and the 1 is the answer for the second elemebt

eg

func(b):b+1

called using a matrix c which is a 2 by 1 matricx of 1 s

would give

func(c)=(2,2)

Cheers

Greg Locock

### RE: What does [2,1] mean?

a result of [2,1] is an indication that you've managed to nest the array, which is why it's not showing you the content of the array.  There should be parentheses around the brackets, which is usually also a clue.

let's say you get d=([2,1]), then "d[0=" should allow you to see the content of the nested array.

If you pick a blank spot to move the edit cursor to and select Format|Result|Display Options and check the "Expand nested arrays] checkbox, you should also see the nested array

TTFN

### RE: What does [2,1] mean?

(OP)
Thanks to IRstuff.
The "d[0=" and "d[1=" hint shows me the result I was looking for. The second hint didn't work.
Unfortunately I didn't understand your explanation.

I used a formula to add two vectors, so the result is a vector again - so far it's easy, but

I defined the formula as a function with an angle as a parameter.

Then I definded an index i=0...360 and passed the vector of the 360 angles (in radian) as a parameter to the function and the result was as described:
L(angle[i)=[2,1]....
I can't see anything being "nested"?!?

Bernds59

### RE: What does [2,1] mean?

can you post your sheet somewhere on the Mathcad Collab website, like the Mechanical Engineering forum?

it'll make it much easier to see what's going on.

TTFN

#### 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.

#### Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a partâ€™s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!