Melody

921 Questions
34315 Answers

+1

1

1740

2

+118723

Mathigon website

I just discovered a site called mathigon

https://mathigon.org/dashboard
read more ..

Melody Apr 2, 2022

-8

606

1

+118723

Reporting problems.

There are a number of people having problems at the moment.
If you lodge an error can you please give all relevant information that you can think of.
Where you are in the world - the city or the country - is often very important information. read more ..

Melody Mar 16, 2022

-2

8

1459

5

+118723

How to make an empty rectangle in Latex

I just worked out how to make an empty box of various horizonal size easily in LaTex.
This is not a recommended method, but other methods that I have tried here have not worked.
This coding is really simple. Just put letters inside read more ..

●●●●●

Melody Mar 15, 2022

-3

869

3

+118723

HAPPY ANNIVERSARY CHRIS! (CPhill)

I just realized that you became a member here exactly 8 years ago today!

It has been great to have you here all that time

off-topic

Melody Mar 13, 2022

-4

846

3

+118723

WELCOME BACK CPHILL !

Melody Feb 11, 2022

-5

716

2

+118723

Very interesting question. No high level maths required.

This question was posted a couple of days ago.
https://web2.0calc.com/questions/geometry_73561

I think it is really interesting. It looks much more difficult than it really needs to be. read more ..

Melody Feb 1, 2022

-7

885

11

+118723

Members have a better experience. Their questions get more attention.

Almost everyone is posting as a guest.
If you post as a member your questions will have a far greater chance of a timely and helpful response.
If you are a genuine learner and interact with us, you will become known and answerers will do read more ..

●●●●●●●●●●●

Melody Jan 9, 2022

-6

1

993

3

+118723

HAPPY BIRTHDAY CHRIS!

Melody Dec 20, 2021

+5

16

5552

9

+118723

Some guidelines for question askers.

Please note:
1) Ask only one question per post.
2) When asking a question talk about what you have tried for yourself. Then people will take you more seriously and will be more able and willing to help.
3) If you get an answer read more ..

off-topic

●●●●●●●●●

Melody Nov 4, 2021

-9

1089

1

+118723

Remeniscing - a little historical humour.

I just found this old post that some of you, who have been around for a while, might find amusing.

https://web2.0calc.com/questions/look-at-the-new-leader-board

off-topic

Melody Oct 29, 2021

+118723

+3

I am partial to fruit segments, but sectors of pies are pretty good too :)

MelodyAug 18, 2015

+118723

0

That would be my guess too I think Geno

MelodyAug 18, 2015

+118723

0

Thanks Heureka :)

MelodyAug 18, 2015

+118723

+5

Maybe this post will help you.

http://web2.0calc.com/questions/it-just-doesn-t-make-sense-to-me

Ask more questions about it if you want - we like to know we are actually talking to a real person :))

MelodyAug 18, 2015

+118723

+5

Thanks for letting us know,

Yes Wolfram|Alpha agrees with your figure of 3.32335... (maybe that is where you got?)

http://www.wolframalpha.com/input/?i=2.5%21

web2.0 calc

$${\mathtt{2.5}}{!} = {\mathtt{3.320\: \!382\: \!507\: \!505\: \!424}}$$

I don't know where else to look it up.

It is most likely a rounding error.

I will leave a note for admin.

MelodyAug 18, 2015

+118723

+5

$${\frac{\left({\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{3}}}}\right)}{{\mathtt{2}}}}$$

= $${\frac{{\mathtt{2}}{\mathtt{\,\times\,}}\left({\mathtt{1}}{\mathtt{\,\small\textbf+\,}}{\sqrt{{\mathtt{3}}}}\right)}{{\mathtt{2}}}}$$

= $${\mathtt{1}}{\mathtt{\,\small\textbf+\,}}{\sqrt{{\mathtt{3}}}}$$

MelodyAug 18, 2015

+118723

+3

Yes, definitely. BUT please put a paper bag over your head so that yout brains will make less mess.

Make sure it is a paper bag because I would not want you to asphixiate BEFORE your brains explode.

That would not be fun at all !

If it was an episode of 'Criminal Minds' or better still 'Bones' then you would want your brains as well as other bits of your anatomy to be jetisoned as far as possible BUT if your mum has to clean it up then that would not be nice :/

MelodyAug 18, 2015

+118723

0

@@ End of Day Wrap Mon 17/8/15 Sydney, Australia Time 12:15am ♪ ♫

(Yes it is Tuesday already )

Hello everyone,

Well our great answers were delivered by TitaniumRome, Alan, Radix, Heureka, Rubenhh, CPhill and jdh3010. Thanks guys

If you would like to comment on other site issues please do so on the L antern Thread. Thank you.

Interest Posts:

1) Just one of the social posts :) To many to name. Thanks MG for getting it underway

2) Perfect square Melody

3) The n'th derivative of 10^-x Thanks CPhill and Heureka

4) Exponential growth. Thanks CPhill

5) Understanding quadratic algebra Thanks Alan and Melody.

6) There are also a number of fractional logic problems on the latest page. Page 1956.

Some of these problems are difficult. Heureka, Alan and Radiz have given some great answers Thanks

I have marked them with a " ? " in the left hand margin.

♫♪ ♪ ♫ ♬ ♬ MELODY ♬ ♬ ♫♪ ♪ ♫

MelodyAug 18, 2015

+118723

+5

$$\\(5\frac{2}{5})^2 \\\\
= \left(\frac{27}{5}\right)^2\\\\
= \frac{27^2}{5^2}\\\\
= \frac{27^2}{5^2}\\\\
=\frac{729}{25}\\\\
=29\frac{4}{25}$$

MelodyAug 18, 2015