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That was a test to see if a new user can register
Here is the amended puzzle:
https://www.mathsisfun.com/puzzles/9-digit-number-solution.html
Please check!
Your solution is right Nasir, thank you!
And Bob is right, the old solution (473816952) works when the rounding starts at down, then up, etc
Will amend.
A function that used to work in PHP called 'create_function()' has been removed as it is a potential security risk. The forum uses that function to handle url tags and image tags.
I have found a work-around for the url tags, which seem to be working now. Yay.
Next I need to find a way to handle the image tags.
Life in a changing world.
Welcome!
Will have a look
Thanks guys
Upgrade completed. Am getting a few internal error messages like "Invalid argument supplied for foreach()" that I can hopefully squash.
But just clicking around the forum it seems fine. If you find any glitches let me know, OK?
I may be able to do this minor upgrade in the next few hours.
It is a "no going back" type of server upgrade, and is necessary because the old version we are running is no longher supported. I have been waiting for a time when I have a few hours available to fix any issues.
When things get quiet over the next few days I plan to update some server software. It will hopefully have no impact on the forum but there is always the chance that something will go awry. If so I will do my best to get it back to normal again.
Most likely the server automatically banned your home IP address. With some internet providers just resetting the modem gets you a new IP, or else I can search the list of banned IPs to find yours.
Hi ngolden, how can I help?
(I am not sure why the contact form is not working for you, we get plent of messages that way. I just checked and it works OK for me.)
It is just the server trying to sort out spam vs real. Nothing to do with you exactly.
Without the spam protection we would be inundated with robot posts, and they come in all types so there are literally 100s of rules (you could have hit any 1 of them).
It is super neat isn't it?
What do you think of this page?
Thanks guys.
Thanks!
The reason for the little story is that most people think "Big Bang" which gives them a false idea of a central expansion point, and I want them to know the Universe is more elegant than that.
Isn't length contraction just a way of handling certain problems and not really a thing?
And how do I work E=mc² into it?
I have drafted an Introduction to Relativity: Relativity
Criticisims, correction, comments all welcome.
I want to get it right before publishing on website!
Very much missed.
Yes zetafunc has it right. There are many automated spam attacks constantly going on, and the server has hundreds of rules to spot them. It simply denies. And if it gets several from the same location it will ban.
Wonderful
Thanks ganesh!
No offence Monox! I am not sure what you mean by equal halves though.
Thanks Guys!
Made a new page: Pythagoras Theorem in 3D
Any suggestions or comments?
Exactly right.
Spam is an annoyance that we always have to fight.
But we also want to allow well established members to talk about other sites.
Imagine you are in a group of friends and someone just turns up trying to sell you something (versus a friend telling you about things).