Advanced math input panel using rules

link to make fast scroll to calculator widget

Introduction:

Analysing our web site visitors behaviour, we pointed out that the major difficulty of using the online calculators is to input mathematical expressions. According our research, user need to spend a lot of time and effort, to understand how to input the task into online calculator to get the correct answer. To save your time and minimize the effort, we worked out the unique input panel (advanced input) for mathematical expressions. So now, you need not to strain yourself to understant how to input your task into our online calculator, since the work with math input panel is very simple.

Working Rules:

Math input panel is the simple input keyboard as the one in the common calculator. To input any expression, one need to push on the corresponding keys with the left mouse button. It is important to understant that in case of using math input panel, the input from PC keyboard is imposible.

When you move the cursor to the corresponding key, the hint is poped up:
poped up hint
To move the cursor to the right or to the left, use corresponding buttons:
left, right button to move

To clear the entire expression, use the button:
button to clear the entire expression

To delete one symbol, use the button:
button to delete one symbol

To input the numbers, use buttons with corresponding labels:
buttons to input the numbers

To enter addition, subtraction, multiplication, division and power operations, use buttons:
buttons for mathematical operations

To enter the variable, use button:
button to enter x variable

To enter parameters, use corresponding buttons:
button to enter various variables

To enter constants π and e , use the buttons:
button to enter pi and e constants

In order to enter the trigonometric, inverse trigonometric, exponent, logarithm, root or magnitude, use buttons with corresponding notations:
button to enter mathematical functions

To simplify input of mathematical functions in powers, we worked out corresponding buttons:
button to enter mathematical functions in power

After you complete the input of you mathematical expression, push the button:
get solution button
to get the solution.

Additional notes:

As soon as your skill in using our advanced math input panel increases, you may note that sometimes some buttons are disabled (this depends on what position is cursor at):

disabled button Backspace
In the example above, the "Backspace" button is disabled because of the cursor at sine argument position and in such a position deletion of the brackets is forbidden (because it is not possible to delete of sine argument without deletion of whole function).

If you want to delete the entire sine function, you should move cursor to the right:

enabled button Backspace
Now "Backspace" button is enabled and you can delete the entire sine function, but the button "move cursor to the right" will be disabled because it (the cursor) is already at the rightmost position.

Sometimes, it may happend that almost all buttons in the math input panel are disabled:

math input panel with all disabled buttons but Backspace
Such a situation results from the fact of deletion of multiplication sign and now the only thing we can do is also delete number 7 or enter operation sign. So, the only enabled buttons are "Backspace", "addtion", "subtraction", "multiplication", "division" and "power".

The button "equal" will be disable until you enter the correct mathematical expression:

mathematically incorrect expression

In order to "equal" button be enabled, in this case, you should enter denominator of fraction and the power you want raise the sine function in. For instance:

mathematically correct expression

Because of tracking what button can be pushed on every step of input, the using of our advanced math input panel prevents you from entering incorrect mathematical expression.

In spite of such an explanations and easy to use, the user still can face the problem of entering the expression in our online calculator, at least for the first time. If this is the case for you, don't be despair. Specially for such cases we worked out the mechanism which allows to input your expression by another man. The "Link" button is intended for this. This button is only enabled when the mathematically correct expression is entered. When you push the "Link" button the link to entered expression appears.

link to input expression

Once you get such a link, you can share it with anyone and by going to this link, the user finds itself on the page where math expression encrypted in this link, is already entered to the calculator. So, one can ask to somebody to help to enter the task and share with this link. After you go on such a link, the only thing you need to do to get the solution of your task is to push the "=" button!

Advanced math input panel is available for limits, indefinite integrals, definite integrals, online derivattive and many other calculators. In the near future, we plan to increase number of calculators with adnvanced math input panel.

Math expressions input panel


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Other useful links:

Limits calculation formulas

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