turn on suggestions

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

Showing results for

Find a Community

- Home
- /
- Analytics
- /
- Stat Procs
- /
- raising matrix to negative power

Topic Options

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

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

07-23-2009 04:45 PM

I have a critical problem.I need to raise a matrix to certain power using (##)operator,the problem is that the power is negative fraction and some elements of the matrix are negative fraction also.the program returuns an error message each time I run it and confirms that the operation couldnot be performed.I donot know how to solve this problem.please I ask for help

Best Regards,

Amani

Best Regards,

Amani

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

07-24-2009 01:00 PM

Your problem is not SAS.

Your problem is that a negative number raised to a fractional power is simply not defined in the domain of real numbers.

Example: Square root of –2 cannot be computed in the domain of real numbers.

You need to define exactly what it is you want, and perhaps come up with a better understanding/explanation of why/how you need to raise a negative number to a fractional power.

Your problem is that a negative number raised to a fractional power is simply not defined in the domain of real numbers.

Example: Square root of –2 cannot be computed in the domain of real numbers.

You need to define exactly what it is you want, and perhaps come up with a better understanding/explanation of why/how you need to raise a negative number to a fractional power.