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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,282

Hi;

Post #22 this thread.

**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.**

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**gauss_infinity****Member**- Registered: 2012-10-23
- Posts: 25

**rapidcalculator.com**

We added the ability to evaluate a single variable function at a certain value! This can also be used to take limits.

For example, to evaluate

you just use the commandThanks to anonimnystefy for the limits suggestion!

We currently have some other suggestions from bobbym and anonimnystefy which we are working to add in (some are actually harder to implement so it will take some time)...

and thanks to all who have tried it and given suggestions! We look forward to more suggestions, since ultimately if you request a feature, we will try to implement it for your benefit

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,282

Hi;

Something nice would be a series command that returned the Taylor or Mclaurins series.

**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.**

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**gauss_infinity****Member**- Registered: 2012-10-23
- Posts: 25

Hi bobbym,

Yup! Thanks for this suggestion! We will integrate this in and update you when it is done...

And also for the multiprecision thing, we will try to add that in (the multiprecision is actually the hardest request for us so far )...

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*Last edited by gauss_infinity (2012-11-03 21:45:21)*

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,282

Hi;

That will be most challenging as was graphics for us. When you finish it though it will strengthen all the other commands.

**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.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

Thabks for the limit functionality!

Why is the poly_x command needed when evaluating sums and limits?

*Last edited by anonimnystefy (2012-11-04 00:33:18)*

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**gauss_infinity****Member**- Registered: 2012-10-23
- Posts: 25

Yes poly_x is not needed, but the reason we did it that way is just to stay consistent with the fact that you should only using variables etc. when dealing with polynomials or graph plotting...:)

*Last edited by gauss_infinity (2012-11-04 11:16:08)*

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**gauss_infinity****Member**- Registered: 2012-10-23
- Posts: 25

**rapidcalculator.com**

Hi guys,

to do taylor series, you can try something like **poly_x[taylors{exp(x),x,0,5}]** to expand

Please check our instructions page for more detailed usage description of this function....

Thanks to bobbym for this great suggestion! (we have also acknowledged you on our facebook page for this suggestion! )

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*Last edited by gauss_infinity (2012-11-04 12:17:00)*

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,015

I love it! Good work!

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**gauss_infinity****Member**- Registered: 2012-10-23
- Posts: 25

Thanks! and no problem at all, we all enjoy math here haha

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,282

Hi;

Very nice and thanks for providing it.

Have you thought of what language structure you are going to provide with the math?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**gauss_infinity****Member**- Registered: 2012-10-23
- Posts: 25

Hi bobbym,

What do you mean by language structure?

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*Last edited by gauss_infinity (2012-11-04 20:12:24)*

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,282

Hi;

For instance If you need to compute the mean of some data. What type of structure will you hold the data in, a vector, an array, a list?

All CAS' have the capacity for loops because sometimes they are needed. The TI series of calculators comes with the rudimentary BASIC along with the math commands. I was wondering if you had any plans along those lines.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**gauss_infinity****Member**- Registered: 2012-10-23
- Posts: 25

hi bobbym,

Sure, I understand you now. But since we doing this as a hobby, what you have suggested (the language structure) might not be feasible for us right now...but thanks again!

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,282

Hi;

I understand. The task is a very big one.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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