i need to a program calculator almost advanced?

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PHP

i need to a program calculator almost advanced?
in php?

Posted 1-Jan-13 9:00am

arh66

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Christian Graus 1-Jan-13 15:03pm

Well, get to it. This is not a programming question, it reads like a request from a lazy person. What have you tried ?

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-01-01T09:09:00

Solution 1

If you use PHP for its major purpose, for Web programming, it will be impractical. Due to performance problems. The calculator already exists, you don't have to do anything. It's called "JavaScript". Just add some text area and call JavaScript eval function on its content?

Example? Please see how I use it: http://sakryukov.org/freeware/calculator/[^].

—SA

Posted 1-Jan-13 9:09am

Sergey Alexandrovich Kryukov

Comments

Christian Graus 1-Jan-13 15:19pm

I suspect he means a calculator, with buttons. By advanced, I assume he means scientific.

Sergey Alexandrovich Kryukov 1-Jan-13 18:38pm

Well, that's likely, but I don't care. To me, a calculator with button is complete trash, makes no practical sense. It only makes sense in a small cheapest device. Training of developers? More of a waste of time...
—SA

Christian Graus 1-Jan-13 18:40pm

Creating a calculator app is a pretty valid way for someone to learn about things like maintaining state, variable scope, basic maths operations, etc. I always suggest it as a starting project ( although not in a web app, that part is odd )

Sergey Alexandrovich Kryukov 1-Jan-13 19:06pm

I understand that, but I dislike the idea of such product, even for the study. You see, it develops inertia of thinking and reconciles a student with the idea that making useless projects is fine. Do you see my motivation?
—SA

Christian Graus 1-Jan-13 19:10pm

No, not at all. I am frustrated at the number of people here who think that their 'learning' projects should also be commercially useful and probably paid for by someone. If you're learning, learning is the goal, for example, everyone should write a list class ( especially if they are learning C++ ), but everyone should use std::list. The point of writing one, is to know how they work.

Sergey Alexandrovich Kryukov 1-Jan-13 19:58pm

If am quite agree with you when you say about commercial project.

I'm talking about different thing: something which I consider useless. As to the good project for study, my idea is this: there is nothing better then a project that you do for yourself. Or your friends. Of course, it requires some level...

—SA