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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

A new "Money" page: Present Value (PV)

What do you all think?

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,516

Hi MIF;

Looks good. Thanks for the page.

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

Well then, here is another (somewhat duplicated beginning): Net Present Value NPV

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,516

Hi;

For someone whose business acumen consists of only knowing when they overcharged me it is quite intimidating. But I think I got it!

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,308

Hi MathsIsFun

Been away, so only just seen this. Looks good and it is clear.

Just one suggestion.

About 3/4 down, where you are using a calculator, you say

1.10 to power 6 is better than 1.10 x 1.10 x 1.10 x 1.10 x 1.10 x 1.10

Could you say is quicker to calculate ?

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

bob bundy wrote:

1.10 to power 6 is better than 1.10 x 1.10 x 1.10 x 1.10 x 1.10 x 1.10

Could you say is quicker to calculate ?

Quicker is better, so better will become quicker.

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

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,308

Ha ha

B

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

And another: Internal Rate of Return IRR

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,516

Hi;

Interesting paper. Good use of the guess and try idea.

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

And the last one to bind them: Investing introduction

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,516

Hi;

Very good, even I got some of it. Thanks for the pages.

I have the result, but I do not yet know how to get it.

All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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