Get Help

Turn on suggestions

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

- Community
- :
- PTC Mathcad
- :
- PTC Mathcad
- :
- Re: Error in amthematical function

Options

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Notify Moderator

04-29-2019
05:59 AM

04-29-2019
05:59 AM

Hello all, whenever I try to solve this mathematical equation, it always gives me an error.

I am pretty sure I am doing osmething wrong or not writing the equationj ina proper way, but until now havnt found out any solution to fix this problem.

It will be very kind of your experts to kindly help me out in this small issue.

The file is attached, in this file you will see "b_limit", which always shows an error for bing_bent, can anyone help me out to solve this please?

Best

Ashutosh Mukherjee

Solved! Go to Solution.

Labels:

1 ACCEPTED SOLUTION

Accepted Solutions

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Notify Moderator

04-29-2019
07:40 AM

04-29-2019
07:40 AM

@Ashutosh1 wrote:

b.ent^2 is an area I agree so is b.limit^2 right?

so both can be added isn't it?

Yes, this would be a possible unit consistent formula and the result would be a length, too.

The attached sheet in P5 format should help

6 REPLIES 6

Highlighted
##

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Notify Moderator

04-29-2019
06:49 AM

04-29-2019
06:49 AM

Re: Error in amthematical function

b.ent is scalar, its unitless and you try to add a length (b.limit). This can't work as you can only add quantities of the same dimension.

Furthermore b.ent is just a range, not a vector as you might think.

What exactly do you expect as result (and which unit do you think it should have?

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Notify Moderator

04-29-2019
07:02 AM

04-29-2019
07:02 AM

Re: Error in amthematical function

Hello Werner,

It is really kind of you to help me out, I expect a range of b.img as a function of b.ent.

b.limit being constant value calculated above. I would expect the units of b.ent in micrometers.

Further the results on second page with del omega i expect those reuslts as a function of b.ent and the units in reciprocal cms.

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Notify Moderator

04-29-2019
07:15 AM

04-29-2019
07:15 AM

Re: Error in amthematical function

I would expect the units of b.ent in micrometers.

So b.ent^2 would be an area but b.limit is a length!

You can't add an area and a length!

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Notify Moderator

04-29-2019
07:18 AM

04-29-2019
07:18 AM

Re: Error in amthematical function

b.ent^2 is an area I agree so is b.limit^2 right?

so both can be added isn't it?

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Notify Moderator

04-29-2019
07:40 AM

04-29-2019
07:40 AM

@Ashutosh1 wrote:

b.ent^2 is an area I agree so is b.limit^2 right?

so both can be added isn't it?

Yes, this would be a possible unit consistent formula and the result would be a length, too.

The attached sheet in P5 format should help

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Notify Moderator

04-29-2019
08:02 AM

04-29-2019
08:02 AM

Re: Error in amthematical function

This is absolutely cool, thank you so much.

It is really nice for your kind time and help.

The results are now very close the the experimental values exactly as I wanted.

Thanks again.

Top Tags