Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#176 Re: Maths Is Fun - Suggestions and Comments » Forum Upgrade 1.5.6 » 2014-05-09 00:37:02

I think we might. I can take a backup of them though.

#177 Re: Maths Is Fun - Suggestions and Comments » Forum Upgrade 1.5.6 » 2014-05-08 21:58:18

I see you are using imgur, which seems to me easier than image upload anyway smile

Anyway, it seems like we all want the upgrade, so this is my plan:

* When I find a block of time a few hours long I will attempt the upgrade (I will warn you guys briefly first!)
* If the upgrade succeeds well enough (say most things function ok) I will keep it in place, otherwise I will restore the old version and try again another day
* Anything that is not working properly I will attempt to fix over the next days and weeks, but some functionality may be lost so we can gain in other areas

OK?

#178 Re: Maths Is Fun - Suggestions and Comments » Forum Upgrade 1.5.6 » 2014-05-08 14:38:18

Extra user images like Agnishom's "Solved" won't work (it is an old mod)
Image upload won't work, but linking to hosted images should be OK.
There may be more, but 90%+ of functionality should be preserved, plus the benefits of latest version.

#179 Maths Is Fun - Suggestions and Comments » Forum Upgrade 1.5.6 » 2014-05-08 10:57:56

MathsIsFun
Replies: 144

The time has come to think about upgrading the forum (to version 1.5.6)

The new version has a more modern look and better spam protection amongst other things.

In terms of code it is a big upgrade and I have been playing with the new version on my PC trying to see if we can get some of our most important modifications working on it, and the math tag and hide tag can be made to work, and there is a new private messaging mod that seems to work too. But any other mods are hard to do.

The upgrade process will involve me taking a current copy of the forum, doing several upgrade steps (over a few hours) and then uploading them to replace the existing forum. During that time the forum will be "down" or working strangely.

And large upgrades seldom go smoothly ... who knows what problems we may face. I do have a test version running nicely on my PC, but that is quite different from running it on a server.

Opinions everyone?

#181 Re: Maths Is Fun - Suggestions and Comments » Inequality Grapher » 2014-04-14 09:27:49

Love the screenshot!

Points: I can't think of a point-finding algorithm. But you can use the "Points" button and zoom in for more accuracy.

#182 Re: Maths Is Fun - Suggestions and Comments » Inequality Grapher » 2014-04-14 00:09:28

4? Was it 4 you wanted? Better than 4, I give you n: Inequality Grapher

(Use the +/- buttons below the y= ... and do a refresh if you can't see them.)

Hopefully I haven't wrecked it in the process, but I am sure you will all let me know if it still works nicely smile

#183 Re: Maths Is Fun - Suggestions and Comments » Inequality Grapher » 2014-04-11 20:55:17

4? You want 4? I think 4 is possible. 4 should definitely be possible. I will try for 4.

#185 Re: Maths Is Fun - Suggestions and Comments » Inequality Grapher » 2014-04-09 09:54:22

Thanks Guys!

It should be possible to add more equations, I just need to do some tricky coding is all.

#186 Maths Is Fun - Suggestions and Comments » Inequality Grapher » 2014-04-08 22:41:11

MathsIsFun
Replies: 16

Made this (repurposed the Function Grapher): Inequality Grapher

How is it?

#187 Re: Dark Discussions at Cafe Infinity » Are you is forever alone? » 2014-04-08 16:56:00

Without conducting a survey I would say that most relationships start while actively trying to find someone.

#188 Maths Is Fun - Suggestions and Comments » Solving Word Questions » 2014-04-08 14:18:18

MathsIsFun
Replies: 3

A new page: Solving Word Questions

It has LOTS of examples, hopefully no errors what

Let me know what you think ... is it a good approach to teaching this?

#189 Re: Dark Discussions at Cafe Infinity » Are you is forever alone? » 2014-04-08 14:14:16

Most math people I know are in a relationship. But it does take "finding the right person".

#190 Re: Maths Is Fun - Suggestions and Comments » Just a thought... explanations? » 2014-04-08 14:08:38

I certainly do welcome fresh ideas!

Feel free to suggest text or images that could be included.

#191 Re: Maths Is Fun - Suggestions and Comments » Binary/Decimal/Hexadecimal Converter Testing » 2014-04-01 15:40:34

That is really kind of you, thanks.

So it is nearly ready to go live (and replace the existing one).

#192 Re: This is Cool » Why does this number work? » 2014-03-30 09:04:06

So perhaps it is just a byproduct of my app's algorithm.

#194 This is Cool » Why does this number work? » 2014-03-29 10:50:13

MathsIsFun
Replies: 29

A gentle reader emailed me, after visiting Nature The Golden Ratio and Fibonacci Numbers, saying:

"With the sunflower app we discovered that 0.15656 works really well too. Why is this?"

Is it related to the Golden Ratio? Why does it work?

#196 Re: Maths Is Fun - Suggestions and Comments » Binary/Decimal/Hexadecimal Converter Testing » 2014-03-27 22:13:37

0001 is supposed to pad binary with zeros to make groups of 4 (so it matches hex)

#197 Re: Maths Is Fun - Suggestions and Comments » Binary/Decimal/Hexadecimal Converter Testing » 2014-03-27 15:48:04

A new test version needs testing: Binary/Decimal/Hexadecimal Converter - Test Version

I often get contacted by people who confuse "computer binary" (limited bits), with treating a binary number as a number. They insisting that "-1 decimal" should be "11111111 binary" (with the first bit being a sign bit), so I have tried to satisfy all comers with a drop-down box of common types.

The trouble is that it opens up many possible errors, so could you kind folk try out lots of things and tell me if they work for you?

Consider:
* positive/negative
* fractional values (like 1.1)
* changing binary, decimal or hex value
* as a number/8-bit/etc.

Cheers!

#198 Re: Maths Is Fun - Suggestions and Comments » Random Coins » 2014-03-23 21:46:32

What would be another good target apart from $1?

Also anyone get all the possible ways?

#199 Maths Is Fun - Suggestions and Comments » Random Coins » 2014-03-23 11:49:59

MathsIsFun
Replies: 6

As promised: Random Coins

Ideas, suggestions, bug reports welcome.

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