Voice calculator online. Android Tools

Online calculator for calculations at work, home or school. Commands can be entered either with the mouse or with the numeric keypad. The calculator loads quickly and works online.

You will be able to perform simple arithmetic operations, as well as calculating percentages, raising a number to a power, and calculating the square root.

The calculator has a temporary memory and a display of current calculations.

Button functions

[ 0 ], [ 1 ], [ 2 ], ... [ 9 ] - standard number keys;
[ 00 ] - key for entering 2 zeros;
[ → ] - deletes the last entered character on the display;
[ +/- ] - changing the mathematical sign of the number on the display to the opposite;
[ XY ] - raising the number X to the power Y;
[ √ ] - square root calculation;
[ + ] - addition, [ - ] - subtraction, [ x ] - multiplication, [ ÷ ] - division;
[%] - calculation of interest;
[ M+ ] - saving in memory with a [ + ] sign;
[M-] - saving in memory with a [-] sign;
[MR] - displaying the contents of memory on the display;
[MC] - clearing memory contents;
[AC] - reset the calculator including memory;
[C] - reset the calculator, without resetting the memory.

Entering commands from the computer keyboard

You can use any number keys to operate the calculator. computer keyboard: both numeric keys located at the top and individual numeric keys located on the right.

To enter equal, you can use the key.
To erase the last character, use the key (arrow key).
To enter a plus sign, use the [ + ] key on the top or side keyboard.
To enter a minus sign, use the [ - ] key on the top or side keyboard.
To enter the multiplication sign, use the [ * ] key on the side keyboard.
To enter a division sign, use the [ / ] key on the side keyboard.
To reset the calculator, you can use the , keys on the top keyboard, or on the numeric keypad.

Examples of calculations using an online calculator

Calculating the square root of 529: 529 [√]. The result is 23.
Raise the number 3 to the power 4: 3 [XY] 4. Result - 81.
Calculating the percentage of a number: 500 [x] 25 [%]. The result is 125.
Adding a percentage to a number: 500 [+] 25 [%]. The result is 625.
Subtracting a percentage from a number: 500 [ - ] 25 [ % ] . The result is 375.

FAQ

Why, if you try to calculate 2+2x2 using an online calculator, it turns out to be 8, is the calculator probably counting incorrectly? The calculator calculates correctly! The thing is that the calculator, when entering the next mathematical operation (addition, subtraction, etc.), makes a subtotal. Pay attention to the current actions display located on the right under the main display.

From the history of calculators

The ancestor of the calculator is abacus, which in Latin means board. The abacus was a board with recesses along which counting marks moved (these could be stones or bones).

Presumably, the first abacus was noticed among the peoples of Ancient Babylon around 3 thousand years BC. IN Ancient Greece The abacus appeared around the 5th century BC.

The appearance of abacus in Russia dates back to the 16th century. The first Russian abacus (Russian abacus) was made of wood, and cherry pits were used as counting marks.

IN App Store without understatement, there are thousands of calculators, and a quite acceptable one is built into the system from the very beginning. But they all have one thing in common - values ​​and operations must be entered manually. But why not use voice recognition for this purpose, especially since such technologies today can no longer be called pampering? I'm sure the guys from InVooDoo asked themselves this question and eventually answered it in the affirmative by introducing the application “Do the math”.

The idea of ​​the calculator is simple - to shift the input of numbers and types of operations to voice commands. It’s not a fact that counting this way will be faster, but it’s definitely more comfortable for a typical user. And the functionality of the program is not limited to this. A smart calculator can recognize not only service commands, but also text, thus generating lists with calculations. You can come up with a lot of application scenarios for this feature.

Just no hands!

Learning to use “Count It” is quite simple; all you need to do is spend a minute or two on the manual. It gradually introduces the functionality of the software and commands that are recognized as mathematical operations(addition, subtraction, division, etc.) Next, you are taken to the working window with the focus on the button with the microphone, which starts the process.

The operating principle is typical for similar applications: recording starts, your voice is recorded and sent to the server, which transforms the recording into a set of words/commands. The process, as expected, requires an Internet connection and takes a few seconds under ideal conditions. The quality of recognition is at an excellent level; if errors do occur, they are often associated with strong extraneous noise or incorrect commands. There is no point in mincing words too much; moderate intonation “Count it” will not confuse you.

What can he do?

The calculator is not complicated, which is quite expected. Among its capabilities are the simplest mathematical operations: addition, subtraction, multiplication, division, and percentage calculation. “Calculate” also knows how to construct equations with handles and carry out operations with the results. The calculations are formed into a column, the results are automatically summed up. Due to the fact that each equation stores not only numbers and symbols, but also words, unique lists are obtained. For example, purchases or estimates.

Lists of counts can be shared via SMS, e-mail, or copy to the clipboard. Those that have become irrelevant are quickly cleared with an intuitive gesture.

* * * *

At first glance, it may seem that “Do the Count” is more of an entertainment than a usable calculator. But having tested it in action, I responsibly affirm that this is not so. Counting with your voice is really simple and, if you are not trained in daily communication with numeric keypad, no less quickly than in a regular calculator. And since there is an opportunity to do something just as well and effectively, but more comfortably, then why refuse such an opportunity? In addition, “Count it” is very good for compiling lists of calculations with text comments on items, which most competitors categorically fail at. So he's quite a player.

Do the math - Voice Calculator!

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Description:

Tired of pressing calculator buttons? Want voice control? Then download the application from the SilinDS developer from our website. can recognize voices and perform all the necessary calculations instantly. Internet access is required for the application to work. But there is also good news for users who have Android 4.1 and higher installed; they can enter data by voice in offline mode; for this you need to update " Voice search Google".

The free version contains some advertising, but it is not noticeable. The application can work with percentages and partial numbers. To activate data entry, click on the Google or Yandex icon and dictate what needs to be calculated. For example, “two plus three multiplied by eight hundred and ninety-nine and divided by five,” the application will instantly do the calculation and display the result. The calculator also supports manual data entry, which will help if there is extraneous noise or for people who have problems with diction. The developers promise to add in the future more features V free version, I would really like to have an engineering control mode.

It will find its fans - that's for sure. But there is one small problem that the developers did not take into account; activation of data input by voice still happens by clicking on special button. To be able to use full voice control, you will have to combine a couple of programs. For me, it's better to use it this way a simple calculator- it’s more reliable. But let's not be biased towards this application. deserves the maximum score.

"Accountant" - calculator with voice control.
In addition to regular calculations, you can enter numbers and operations by voice.
Voice input carried out using online services Google or Yandex. When using Yandex, the application may close unexpectedly, because... The service is young and apparently not yet debugged.
Owners of devices with Android versions 4.1 and above can enter data by voice, using Google service- OFF LINE. To do this, update "Voice Google search" and install the Russian language pack (Settings->Language and Keyboard->Google Voice Input->Offline Speech Recognition).
Work with percentages is supported. The operation "equals" can be used, but it is not necessary. It is possible to continue the calculation (“plus two”).
When performing calculations “manually”, the calculation can be done by clicking on the “result output field”.

Voice recognition is critical extraneous noise and diction. If you speak the language with an accent, not clearly, or loud noise, do not blame the application for incorrect results. The result that was received by the application is displayed on the screen and you can always verify the correctness (or incorrectness) of the input. I also do not recommend using the application for children and teenagers. Apparently, an unformed voice is also not recognized correctly. There can be no talk of any calculations under such conditions.

When using the service Google smartphone is adjusted to the owner’s intonation and speech is recognized better and better over time, unless this function is specifically disabled: http://support.google.com/android/bin/answer.py?hl=ru&answer=186263

Further ways to develop the free application:
- adding operations
- the ability to save the calculation made in the phone’s memory (linked by date/time, location, the ability to give your own name to the calculation made (also by voice)...
- design improvement