Melody

921 Questions
34315 Answers

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Mathigon website

I just discovered a site called mathigon

https://mathigon.org/dashboard
lire plus ..

Melody 2 avr. 2022

-10

590

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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. lire plus ..

Melody 16 mars 2022

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1400

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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 lire plus ..

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Melody 15 mars 2022

-5

854

3

+118677

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

Hors sujet

Melody 13 mars 2022

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832

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WELCOME BACK CPHILL !

Melody 11 févr. 2022

-6

705

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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. lire plus ..

Melody 1 févr. 2022

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863

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+118677

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 lire plus ..

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Melody 9 janv. 2022

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HAPPY BIRTHDAY CHRIS!

Melody 20 déc. 2021

+2

1

5468

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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 lire plus ..

Hors sujet

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Melody 4 nov. 2021

-10

1070

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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

Hors sujet

Melody 29 oct. 2021

+118677

+1

No idea. Sorry.
If you find the answer with the logic I would love for your to share it with me.

Melody1 oct. 2013

+118677

+1

I don't know what the company did but if you add up all 4 sides you get 201 and 1/2 feet.

Melody1 oct. 2013

+118677

+1

Pi is the number of times that a diameter goes into a circumference.
It was worked out by some clever dude.
It is needed for all sorts of building and engineering things.

Melody1 oct. 2013

+118677

+1

Just add up the sides and divide by 5

Melody1 oct. 2013

+118677

+1

I have no idea what you are talking about.

Melody1 oct. 2013

+118677

+1

3+30-49+2 = -14

Melody1 oct. 2013

+118677

+1

grams is a weight and ml is a volume so I can only answer this if I know what material you are using.

There is 1 ml of water weighs 1 gram

but 1ml of molten lead would weigh much more.

Melody1 oct. 2013

+118677

+1

The square roots of negative numbers do not exist. There is no answer.

If you study maths into university then you will learn about imaginary numbers.
The square root of a negative number is an imaginary number.
You won't need to worry about this for a very long time.
Hope you find this answer interesting.

Melody1 oct. 2013

+118677

+1

1987-34 = 1953
Jim was born in 1953

It is 2013 now
2013-1953 = 60

Jim will turn 60 this year but he might not have had his birthday yet.

Melody1 oct. 2013

+118677

+1

negative * negative = positive
positive * positive = positive

negative * positive = negative
positive * negative = negative

If the signs are the same the answer is positive
If the signs are opposites the answer is negative

Hope this helps, it is a very important concept for you to grasp.

Melody1 oct. 2013