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#1 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-05 15:08:33

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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#2 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-04 20:12:01

Hi bobbym,

What do you mean by language structure?

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#3 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-04 12:23:56

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

__________

rapidcalculator.com

#4 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-04 12:08:08

rapidcalculator.com

Hi guys,

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

about point
up to the
term.

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! tongue)
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#5 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-04 11:09:57

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...:)

#6 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-03 21:45:02

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 tongue)...

___________________

rapidcalculator.com

#7 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-03 20:45:02

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 command poly_x[evalx{(1+1/n)^n,n,infty}]

Thanks 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 smile

_____________________________

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#8 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-02 13:22:35

hi bobbym,

yea, we were about to hardcode it to indeterminate, but then realize most books actually use 1 for it haha so that is what we default to...

#9 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-02 13:21:29

hi anonimnystefy,

yea we will put that on our list as well....

thanks!

#10 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-02 13:19:55

yes...just do poly_x[eqsolve(x+2-3,x)]


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#11 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-02 13:18:09

and yup definitely, if we need help with coding we will definitely look around here smile

#13 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-02 13:14:11

No it is not a glitch. 0^0 is indeterminate, but for most purposes any to the power of 0 is defined to be 1 so that is what we adopted as well.

#14 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-02 13:12:02

Yup! We will be adding more features so stay tuned!

We also try to keep usage as intuitive as possible. Much of the usage patterns are actually very similar to TI-89 or softwares like MATLAB, Mathematica, Maple. The nesting of operations and command interpretation is the same, so hopefully you get used to it fast! Moreover, some heavy operations not possible on graphing calculators will be possible on this platform due to more processing power available.

__________________________

rapidcalculator.com -- Try out this powerful mobile computational platform!

#15 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-02 06:48:40

Hi Shivamcoder3013,

Thanks for trying!

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#16 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-01 17:08:55

hi bobbym,

we just followed the instructions on their webpage...

Thanks for trying our website!!!

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rapidcalculator.com ---- Try out this powerful mobile computational platform!

#17 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-11-01 14:32:00

rapidcalculator.com

Hi guys,

We added some cool new functions:

1) We added the ability to do summations (as suggested by anonimnystefy). For example, to do the sum

you would do the command: poly_x[evalsum{x^2*y+z,x,1,14}] . The result of the summation will be in terms of
and

2) We added the ability to solve equations. This equation solving function is an exact solver. For example, to solve the equatoin

where
is the unknown, you would use the command poly_x[eqsolve(x^2+a*x+(b-3*c),x)]. Our solver will return the answer as
and 
which are exact.


To do list:
1) Multiprecision (suggested by bobbym)
2) Coefficients (suggested by anonimnystefy)
3) Plotting for all variables (suggested by anonimnystefy)
4) Error message change (suggested by anonimnystefy)


Thanks again!

______________

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#18 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-10-31 14:45:17

Hi anonimnystefy and bobbym,

Two of us are working on it now. And thanks for the suggestions from both! We will keep you guys posted.

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#19 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-10-31 13:05:52

Hi all,

Sure! Thanks for all the input...we will try to address these in our next revision of the platform.

______________

rapidcalculator.com

#20 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-10-31 11:49:45

Hi anonimnystefy,

sums of what? If you can give some examples we can try to program it in if it is feasible smile

Thanks!

_______

rapidcalculator.com

#21 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-10-31 11:42:45

Hi anonimnystefy,

Thanks for trying the computing platform. yea, 0^0 should be indeterminate form, however we default anything to the power of zero to be one, so the final answer is 1.

We hope this computing platform is useful to math students and teachers alike!

math on!

try it at rapidcalculator.com

#22 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-10-31 08:32:50

rapidcalculator.com

We added some new useful math functions:

1) Ability to define multinomial functions (maximum number of variables is 26 if you use all the single letter alphabets)
2) Ability to perform operations on these functions like derivatives, integrals, partial derivatives, partial integrals
3) Cleaning up of some notation, for example previously for sine you have to type the command _sin(), but now you can just use sin()
4) Improved performance and display

Check out our computing platform at rapidcalculator.com

#24 Re: Coder's Corner » A powerful mobile math computing platform/web tool » 2012-10-24 12:27:24

Hi Bobbym,

Thanks for your recommendation and encouragement! yes, we have put your suggestion for the floating point precision on our to-do list. We hope the users of this forum would benefit from this powerful math platform!

Again, the link is at rapidcalculator.com

and our facebook page is at facebook.com/ProAlgorithms where we will be posting all updates to the platform.

Once again, thanks to everyone who tried it! Math on!

#25 Coder's Corner » A powerful mobile math computing platform/web tool » 2012-10-23 13:44:50

gauss_infinity
Replies: 64

*Note: This math tool is for educational/academic purposes to solve larger scale math problems.

My friends and I are working on a public mobile computing platform that could be of interest to this community.

The URL is at: rapidcalculator.com

RapidCalculator.com is a free mobile large-scale computing platform (this is like a heavily souped up TI-83 or TI-89). We create the capability for users to perform heavy calculations on the web or on their mobile devices.

Perform intensive math/science/engineering calculations, matrix operations like multiplication/inverses, plot graphs of functions, operations on polynomials like multiplication/differentiation/integration, evaluate Fast Fourier Transforms, manipulate complex numbers and much more! Does not require any installation or plugin.

This tool is currently still under continuous development and enhancement (this is our first stable release), and we appreciate your feedback! Let us know what math functions that we should add, and what features would generally be useful for scientists/engineers/students/teachers. If it is feasible we will try to program it in. We are continuously adding new technical functions.

To start you guys off, as an initial math exercise you could perhaps do the following computation

, which is tedious by hand, but in RapidCalculator you will just type the command:

poly_x[(cos(x)^3+sin(6*x)^5+1/log(x)^2).ddiff{x,20}]

and see the results! smile A lot of other larger-scale calculations not possible on your graphing calculators/mobile devices will be possible on our computing platform.


Thanks, and we appreciate feedback!

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