Math Is Fun Forum

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Investment/Loan Graph

Working on a new Investment/Loan Graph

Does it make sense? Does it do the calcs correctly? Any suggestions?

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

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Investment/Loan Graph

Hi MIF;

Very nice looking interface. So far it is doing everything correct.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,621

Re: Investment/Loan Graph

hi MathsIsFun,

I'm confused.  Raw? PV NPV etc ?

I looked at your interest and compound interest pages and so I think PV means 'present value'.

But you used FV for 'future value',  so what is NPV ?

And why is the 2000 negative ?  Does that mean it is a loan rather than an investment ?

Maybe a key to the terminology is needed.  (Well, it is for dummies like me )

Bob

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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
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

Mathegocart

Member

Registered: 2012-04-29

Posts: 2,226

Re: Investment/Loan Graph

MIF,nice graph.But you might need to put more info,Like what Bob said.Anyway great job

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The integral of hope is reality.
May bobbym have a wonderful time in the pearly gates of heaven.
He will be sorely missed.

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: Investment/Loan Graph

Thanks guys, will add explanations and links to relevant pages.

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