Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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Thanks everyone!

I will leave the page as it is until I can think of a way to simplify it without straying into "y=2x+3 becomes y=(x-3)/2" territory.

The "graphing calculator" reasoning might be why Wolfram (ie Mathematica) uses f-¹(x)

Thanks Guys!

I found Wolfram uses f-¹(x): http://mathworld.wolfram.com/InverseFunction.html

It would be nice to simplify the page to f-¹(x) ... but in the intro I say "So the inverse of: 2x+3 is: (y-3)/2" and that does not sit well with using f-¹(x)

Nor with the table of inverses as ganesh mentions.

**MathsIsFun**- Replies: 10

On this page: Inverse Functions

I have f(x) becoming f-¹(y)

But a reader has suggested it should be f-¹(x)

It would certainly be simpler not swapping y for x. What is correct do you think?

bobbym wrote:

... and since I have no spoon that shiny ...

I polished it specially for the occasion!

I will mention The law of reflection, thanks ganesh.

**MathsIsFun**- Replies: 3

Another one for comments/suggestions: Reflection

Thanks everyone! Excellent hearing, bobbym.

You may be in Internet Explorer, bob, it does not have a thing called "AudioContext" so my code doesn't make any sound.

**MathsIsFun**- Replies: 6

Another in the Waves series: Sound Waves

Let me know any Suggestions and Comments

Thanks!

**MathsIsFun**- Replies: 4

A new page for you guys to review: Introduction to Waves

(I have been working on a lot of pages on waves, this is the first.)

Comments, suggestions please.

Thanks bobby and ganesh.

And bobby: the Romans were just that good. Great roads, too. But apart from concrete and roads what have they ever done for us?

**MathsIsFun**- Replies: 3

Another page for everyone to check out: Types of Force

Comments/suggestions welcome

Thanks guys!

**MathsIsFun**- Replies: 4

A new page for you guys to comment on: Potential and Kinetic Energy

**MathsIsFun**- Replies: 3

A new page for you guys to review: Energy and Work

**MathsIsFun**- Replies: 5

Have a try of this little Prime Numbers Activity and tell me what you think!

Updated Gravity Freeplay with an edit option, how is it?

**MathsIsFun**- Replies: 7

A new page on Gravity

Would value your feedback.

Any ideas on how to best present space-time curvature will be welcome!

Also help in tightening up the wording is welcome, too.

LOL bobby!

I do hope to add more pages ganesh.

**MathsIsFun**- Replies: 3

Another new page: Force Calculations

Comments and suggestions please.

**MathsIsFun**- Replies: 3

A new page: Force

Comments and suggestions please!

Welcome!

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