Math Is Fun Forum

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Scientific Calculator

I have been working on a Flash version of a Scientific Calculator

And I just (foolishly) uploaded it on top of the old javascript one (which had some bugs).

It seems to work. And I am conducting lots of test on it, but the developer is never a good tester.

So could you guys give it a thorough working over and let me know any problems?

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

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,413

Re: Scientific Calculator

1. The calculator is unable to compute 171!, which means the calculator has an upper limit of 307 or 308 digits. The factorial function seems to work perfectly

2. There are some functions which are in addition to the ones found in a standard scientific calculator, such as all the 'Functions needing two values', lograithm to the base b etc. This is an additional feature, and a good one!

3. Certain functions like

are not available.

is missing!

4.

may also be added, if possible. Further, conversion frm Polar to rectangular coordinates and vice versa isn't available.

5. Binary, Octal, and Hexadecimal systems are missing. These aren't an absolute necessity though. Similarly, Logic operations 'And', 'Or', 'Not', 'Nor' etc. are not available. Operations on Complex numbers too cannot be performed.

The functions which are presently not available may be added, if feasible.

The bottom line is, it is a Great effort, and has yielded a wonderful result.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: Scientific Calculator

Thanks ganesh! I will try to tackle some of those features in the next release.

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

JaneFairfax

Member

Registered: 2007-02-23

Posts: 6,868

Re: Scientific Calculator

As an ordinary calculator, it’s good enough. But for it to be a SCIENTIFIC calculator, then I think some of the things mentioned by Ganesh should be included.

random_fruit

Member

Registered: 2008-12-25

Posts: 39

Re: Scientific Calculator

Can you please explain how and where a "flash" calculator is loaded, and indeed where a Javascript version is loaded?  If I'm told that, I may be able to try yours out.

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: Scientific Calculator

The Scientific Calculator is in "flash"

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

quittyqat

Member

Registered: 2009-04-08

Posts: 1,215

Re: Scientific Calculator

I got it to say
1*1-------8/=-Infinity
and
3.14159265=Infinity
What did I do? I just typed random numbers.

Last edited by quittyqat (2009-05-16 07:11:14)

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I'll be here at least once every decade.

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: Scientific Calculator

Look at the "Interpreted Formula" to see what it is doing.

For example "8/" ends up being "8/0"

I guess "Infinity" is wrong ,,, it should be "undefined".

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