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

You are not logged in.

## #1 2013-12-19 12:05:13

MathsIsFun
Registered: 2005-01-21
Posts: 7,619

### Concave Upward and Downward, and Inflection Points

Two new pages:

Concave Upward and Downward

Inflection Points

Let me know what you think, and any errors you might find.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline

## #2 2013-12-19 13:05:12

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,707

### Re: Concave Upward and Downward, and Inflection Points

Hi;

Thanks for the pages. I always have trouble with these. Looks good to me but better get some other opinions too.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #3 2013-12-19 20:32:51

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,613

### Re: Concave Upward and Downward, and Inflection Points

hi MathsIsFun

Those pages are excellent; you have made it crystal clear.  If only I'd had that clarity 46 years ago ...

Many thanks.

Bob

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

Offline

## #4 2013-12-21 11:56:28

MathsIsFun
Registered: 2005-01-21
Posts: 7,619

### Re: Concave Upward and Downward, and Inflection Points

Thanks Guys!

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline