Melody

921 Questions
34316 Answers

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Mathigon website

I just discovered a site called mathigon

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

Melody Apr 2, 2022

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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

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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 ..

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Melody Mar 15, 2022

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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

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WELCOME BACK CPHILL !

Melody Feb 11, 2022

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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

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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 ..

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Melody Jan 9, 2022

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HAPPY BIRTHDAY CHRIS!

Melody Dec 20, 2021

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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

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Melody Nov 4, 2021

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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

+118735

+5

[4a ÷ (c - b)3 + 2d] ÷ (d - c) Evaluate the expression when a = 2, b = -3, c = -1, and d = 10

[4*2 ÷ (-1 - -3)3 + 2*10] ÷ (10 - -1)

=[8 ÷ (-1 +3)3 + 2*10] ÷ (10 +1)

=[8 ÷ (2)*3 + 20] ÷ 11

=[4*3 + 20] ÷ 11

=[12 + 20] ÷ 11

=[32] ÷ 11

=2 and 10/11

MelodyJan 31, 2015

+118735

+5

hi Dasiy,

What has the lny got to do with anything? I do not understand the question. :(

MelodyJan 31, 2015

+118735

+5

they just want to make m the subject. so the answer is m=8+4n

MelodyJan 31, 2015

+118735

+5

$${{\mathtt{87.5}}}^{{\mathtt{30}}} = {\mathtt{18\,207\,134\,090\,035\,116\,116\,091\,477\,014\,745\,161\,312\,160\,031\,557\,606\,798\,546\,800.064\: \!286\: \!799\: \!170\: \!076\: \!8}}$$

MelodyJan 31, 2015

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Thanks Happy

Here it is Rosala - I am very proud of my brain.

It is big and golden and very beautiful. :)))

MelodyJan 31, 2015

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0

I like that grumpy cat too.

and

"Twinkle twinkle little star, I want to hit you with a car"

That is great. Fits in brilliantly with Zegroes calling himself a star. LOL

Zegroes thinks he is a star - Look here

MelodyJan 31, 2015

+118735

+5

$$\\st+3t=6\\
st=6-3t\\
s=\frac{6-3t}{t}\\
or\\
s=\frac{6}{t}-3\\$$

MelodyJan 31, 2015

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Okay, that is really good. I like working through proofs too, they can be very challenging

MelodyJan 30, 2015

+118735

+11

@@ End of Day Wrap Fri 30 /1/15 Sydney, Australia Time 12:25 am (Really Sat morning)

Good day to you all,

Another very busy day and our industrious answerers were: CPhill, saseflower, Jillybean, Heureka, alan, Happy7, sasini, Rosala, InovativeProgrammer, Loleris, Tiddle, Zegroes, TayJay, and nagendra. What a lot of helpers we have these days. It is a good thing to because there are sooooo many questions. A huge thank you to each of you.

Interest posts:

1) Some number theory by Cantor Thanks CPhill as Saseflower.

2) Distance between 2 points with graphing and pythagoras - Thanks anon

3) A little motion physics - Thanks Alan, Heureka and Chris

4) Ice takes up more space than water. Thanks anon and Alan

5) Complex numbers 1 Thanks Chris

6) Complex numbers 2 Melody

7) Decimal point, decimal comma Thanks Melody and Tiddle

8) Without L'Hopital's Rule show that sin(x)/x=1 Thanks Chris and Heureka

9) Finding areas using integration Thanks Heureka

♫♪ ♪ ♫ ♬ ♬ MELODY ♬ ♬ ♫♪ ♪ ♫

MelodyJan 30, 2015

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Sat 31/1/15

1) David joined in on my New Year post. Thanks to everyone who has posted on that thread.

2) Our friendly neighbourhood troll is back. ROF LOL Thanks Nauseated.

3) Maths Puzzle. Thanks anon

4) Time for a Laugh - Thanks Rosala

5) Solving an equation with logarithms. Thanks Chris

6) Continuous functions. Good basic understanding question and answer. Thanks Alan

7) A touch of probablilty Thanks Alan

8) Understanding logarithms Thanks Chris

9) Permutation Question Thanks Alan, DavidQD, CPhill and Melody

10) I thought this simultaneous equation question was interesting. Melody

♫♪ ♪ ♫ ♬ ♬ MELODY ♬ ♬ ♫♪ ♪ ♫

MelodyJan 30, 2015