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
- :
- A proof for their equivalence ?

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

Highlighted

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

11-08-2018
02:30 PM

11-08-2018
02:30 PM

Hello Everyone.

From :

A proof for their equivalence ?

Thanks in advance.

Regards.

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

11-11-2018
08:59 AM

11-11-2018
08:59 AM

Same problem here.

Note that Mathcad, especially when graphing, will often use what's known as the 'principal' value: https://en.wikipedia.org/wiki/Principal_value.

So, while graphing two functions may appear to show that two functions are equal, it does not __prove__ equality.

Once again: what's your definition of 'equivalence'?

Success!

Luc

4 REPLIES

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

11-09-2018
02:33 AM

11-09-2018
02:33 AM

Re: A proof for their equivalence ?

Note that I(x) results in pure real values, while II(x) results in multivalued and complex values.

Proof of equivalence depends on your definition of 'equivalence'. If it is other than 'equality' you may stand a chance.

Success!

Luc

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

11-10-2018
01:45 PM

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

11-10-2018
10:54 PM

11-10-2018
10:54 PM

Re: A proof for their equivalence ?

What purpose?

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

11-11-2018
08:59 AM

11-11-2018
08:59 AM

Same problem here.

Note that Mathcad, especially when graphing, will often use what's known as the 'principal' value: https://en.wikipedia.org/wiki/Principal_value.

So, while graphing two functions may appear to show that two functions are equal, it does not __prove__ equality.

Once again: what's your definition of 'equivalence'?

Success!

Luc

Top Tags