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 ..

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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

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Jackis:
Problems here http://imageshack.us/a/img46/6629/7hnn.jpg

Hi Jackis
This is the first one

140204 Integral.JPG

MelodyFeb 4, 2014

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Okay thanks Reinout-g
I suppose i should have realized that.
If we use this as an information thread then these last posts should be deleted I guess.
there is no point in having garbage in an information post.
A post can be deleted by the person posting so long as it is the final post in the thread.

Lately when I bump things I delete the last 'bump' post first before i do a new 'bump' post.
this way there is only one bump and not an endless procession of them.

I've been thinking about the log posts. I guess you chose those numbers just to show the down side but if positive numbers are chosen the log display would also be very useful and should definitely be included. Could you put together something worth while, either with one of these two OR it might be easier just to copy and paste the good bits into a fresh post.

I really appreciate the effort you have put into this.
Melody.

MelodyFeb 3, 2014

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MelodyFeb 3, 2014

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Hi everybody,

We had some great answers today from DakenSoren, Flarp, Abhi, lilipop, Singfur, Rom, DavidQD, and several by guests. I think there were a few questions answered by the same guest. Why don't you sign up or at least choose a name. That would be really good because I love that you attempted so many questions today and I would like to know who you are .

I actually had a problem with a question today. I answered it but I would like input as to how it should be interpreted. (I am not sure if it is correct) This is the page.
http://web2.0calc.com/questions/help_179

There were three of the more difficult questions that I didn't get done. Time was a problem today.
I will bump them up after I finish this post.

Good night all.

MelodyFeb 3, 2014

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MelodyFeb 3, 2014

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MelodyFeb 3, 2014

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MelodyFeb 3, 2014

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MelodyFeb 3, 2014

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asdt:
:| what is all the numbers of pie

Pi is an irrational number.
This means that it cannot be written exactly as a fraction or as a terminating decimal. It can't even be written as a recurring decimal.
no matter how many digits you find, there will ALWAYS be more to be found.

Here is just a few of the digits of pi

pi.JPG

MelodyFeb 3, 2014

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mohamedabdelatey:
how can i make cos inverse

huh?
press shift cos

Inverse cos is what you use if you have got the cos answer but you want to find the angle

inverse cos is the same as arccos

MelodyFeb 3, 2014