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# Got questions about Graphing Calculator 3D?

## Got questions about Graphing Calculator 3D?

Welcome to Graphing Calculator 3D question forum!
This forum is designed for questions and comments regarding Graphing Calculator 3D found at:

http://www.runiter.com/graphing-calculator/

If you have downloaded Graphing Calculator 3D and have questions or comments, please post them here. I will personally respond to each and every question.

Saeid Nourian
President of Runiter Company

Last edited by runiter on Fri Aug 29, 2014 10:44 am; edited 1 time in total

runiter

Posts : 135
Join date : 2007-12-05
Age : 39
Location : Boston, MA, USA

## mortage tables

i thought i could use this to calculate a loan repayment schedule with interest, variable payments and a balloon - did i download the wrong program or is that math here somewhere and i don't know it?
rb

robingyn
Guest

## Re: mortage tables

Hi Robin,
This program is very flexible easy-to-use yet powerful calculator that currently targets general math but we have plans for finance/mortgage specific calculations as well. Although currently it does not have a build-in interest amount function, you could easily define your own. For example type:

then use it like this:
MonthlyPayment(100000, 0.05, 25)

to calculator monthly payment of 100,000 loan for 5% interest over 25 years.

As per formulas found here:

http://www.mtgprofessor.com/formulas.htm

runiter

Posts : 135
Join date : 2007-12-05
Age : 39
Location : Boston, MA, USA

## Re: Got questions about Graphing Calculator 3D?

How do you graph solids?

Guest02
Guest

## Re: Got questions about Graphing Calculator 3D?

Can you tell me an example of a solid?

runiter

Posts : 135
Join date : 2007-12-05
Age : 39
Location : Boston, MA, USA

## Draw Error

After typing an equation in to Z= dialog box and hitting enter, I get the following draw error:

Unexpected Error: javax.media.j3d.IndexedGeometryArray.setCoordIndicesRef([I)V

Does anyone have an idea what my problem might be? Your help would be appreciated. This little implication is keeping me from using this piece of excellent software!

Thanks.

Chem.Eng
Guest

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