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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,664

Just made an Order of Operations Calculator

Play with it, give it a good workout, and let me know what you do or don't like about it

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

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**Ricky****Moderator**- Registered: 2005-12-04
- Posts: 3,791

It pretty gracefully handled my huge input. You may want to put a limit to the amount of text one can put in the input box though.

"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi;

Ricky wrote:

It pretty gracefully handled my huge input.

Well, I bet my input is huger.

7*5^3/5+11/2^3/2/2/3/5+17*123.345^32.34*17.2345-3^2.3^3.4

The calculator just wouldn't accept the last part "-3^2.3^3.4" , when I tried to paste it in. So either we are looking at a bug or you have already restricted the size of the input.

So maybe there might be overflow issues also.

Tree idea is excellent cause it shows how it was parsed.

*Last edited by bobbym (2009-10-19 17:22:21)*

**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.**

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,664

Thanks!

I made the text size a bit smaller, and allowed selecting of the output so you can scan down with the mouse to see the result.

It gets: 1.24084779868173e+70

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

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi MathsIsFun;

Could be browser related but I can't cut and paste my expression to see that answer.

**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.**

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**Ricky****Moderator**- Registered: 2005-12-04
- Posts: 3,791

Well, I bet my input is huger.

I was referring to the length of input that I was giving, and if your next line is your input, it wasn't.

"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,664

bobbym wrote:

Could be browser related but I can't cut and paste my expression to see that answer.

You may need to use refresh to get the latest version (0.62)

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi MathsIsFun;

I am using 0.62, the trouble is that my cursor starts in the middle of the input bar. I can't get it over to the extreme left. Have no idea what is causing that.

Hi Ricky;

Was just kidding around, please excuse my sense of humor.

**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.**

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