Melody

921 Questions
34316 Answers

+1

1

1745

2

+118735

Mathigon website

I just discovered a site called mathigon

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

Melody Apr 2, 2022

-8

613

1

+118735

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

1483

5

+118735

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

873

3

+118735

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

850

3

+118735

WELCOME BACK CPHILL !

Melody Feb 11, 2022

-5

721

2

+118735

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

888

11

+118735

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

999

3

+118735

HAPPY BIRTHDAY CHRIS!

Melody Dec 20, 2021

+5

16

5577

9

+118735

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

1098

1

+118735

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

YES that sounds right ! Excellent logic there LOL

MelodyApr 8, 2015

+118735

+10

$$\\y=kx\qquad $Where k is the constant of variation$\\\\
4.5=k*-1.5\\\\
4.5/-1.5=k\\\\
k=-3\\\\
check\\\\
-3*2.8=-8.4\quad $Yes that is what it needed to be $$$

MelodyApr 8, 2015

+118735

+10

Maybe you might like to watch this video

https://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/v/basic-trigonometry

MelodyApr 8, 2015

+118735

+5

Why Natthada?

This is a teaching site. Just giving answers doesn't help people to learn . Maybe you could explain a little?

Anon if you want more of an explantion it is up to you to ask for it.

MelodyApr 8, 2015

+118735

+10

7sinx=4

Sinx=4/7

X=asin(4/7)

answers will be in 1st and 2nd quadrants

MelodyApr 8, 2015

+118735

+5

Thanks Geno that is great - it is a pity that it doesn't display the graph as well though

I'll put this in our 'reference material' sticky thread, with the other useful tool our members have found.

MelodyApr 8, 2015

+118735

+5

or atan on the web2 calc

MelodyApr 8, 2015

+118735

+8

@@ End of Day Wrap Tues 7/4/15 Sydney, Australia Time 12:06am (Really Wed morn) ♪ ♫

Hi all,

Great answers today from MathsGod1, CPhill, Garmoon, asbooooo, sadpumpkin (don't be sad), Pyramid, Alan, Geno3141 and JohnJohn. Thanks all

Interest Posts:

FTJ means "For the Juniors"

1) A bit of monkey business Thanks CPhill and Alan

2) A bit of fun - but is it true? :) Melody

3) Factorizing sum of 2 cubes Thanks CPhill and Melody

4) Basic probablility (suitable for middle high) Thanks CPhill

5) Probability and ratios Thanks CPhill and Melody

6) What is the factorial of a decimal Thanks Geno and Melody

7) Trig - be careful with those neg signs. Thanks Alan

8) What is nCr and nPr ? Melody

9) Fibonacci sequence as a formula Thanks Geno

10) Interior angle sum of a hexagon FTJ Melody

11) Angular and linear velocities Thanks CPhill

♫♪ ♪ ♫ ♬ ♬ MELODY ♬ ♬ ♫♪ ♪ ♫

MelodyApr 8, 2015