The following warnings occurred:
Warning [2] count(): Parameter must be an array or an object that implements Countable - Line: 795 - File: showthread.php PHP 7.4.33 (FreeBSD)
File Line Function
/showthread.php 795 errorHandler->error




HP Forums / HP Calculators (and very old HP Computers) / General Forum v / 41CL Quiz: Determinant of 30x30 anti-Identity matrix

Post Reply 
41CL Quiz: Determinant of 30x30 anti-Identity matrix
05-11-2018, 09:10 AM (This post was last modified: 05-11-2018 09:11 AM by Ángel Martin.)
Post: #1
Ángel Martin Offline
Senior Member
 		Posts: 1,448
Joined: Dec 2013
41CL Quiz: Determinant of 30x30 anti-Identity matrix
This quiz is just for you, proud owners of a 41CL: -

Calculate the determinant of a 30x30 matrix with all elements equal to "1" except the diagonal, which has all zeros. I call this type "anti-Identity", but it's totally made up for you purists out there so don't nail me down just yet.

The exact result is Det = -29

My solution returns -28.999999977 in 11 minutes, give or take...

Hint: check in the CL Library for a suitable aid...

Cheers,
ÁM
"To live or die by your own sword one must first learn to wield it aptly."
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
41CL Quiz: Determinant of 30x30 anti-Identity matrix - Ángel Martin - 05-11-2018 09:10 AM



User(s) browsing this thread: 6 Guest(s)

Contact Us | The Museum of HP Calculators | Return to Top | Return to Content | Lite (Archive) Mode | RSS Syndication