Math-Calculator-Online v.1.0
The calculator performs the following operations: addition, subtraction, multiplication, division, working with decimals, extracting the root, raising to a power, calculating percentages, and other operations.
Solution:
How to use the math calculator
| Key | Designation | Explanation |
|---|---|---|
| 5 | numbers 0-9 | Arabic numerals. Enter natural integers, zero. To get a negative integer, press the +/- key |
| . | semicolon) | A decimal separator. If there is no digit before the dot (comma), the calculator will automatically substitute a zero before the dot. For example: .5 - 0.5 will be written |
| + | plus sign | Addition of numbers (whole, decimal fractions) |
| - | minus sign | Subtraction of numbers (whole, decimal fractions) |
| ÷ | division sign | Division of numbers (whole, decimal fractions) |
| X | multiplication sign | Multiplication of numbers (integers, decimals) |
| √ | root | Extracting the root from a number. When you press the "root" button again, the root is calculated from the result. For example: square root of 16 = 4; square root of 4 = 2 |
| x2 | squaring | Squaring a number. When you press the "squaring" button again, the result is squared. For example: square 2 = 4; square 4 = 16 |
| 1/x | fraction | Output to decimals. In the numerator 1, in the denominator the input number |
| % | percent | Get a percentage of a number. To work, you must enter: the number from which the percentage will be calculated, the sign (plus, minus, divide, multiply), how many percent in numerical form, the "%" button |
| ( | open bracket | An open parenthesis to set the evaluation priority. A closed parenthesis is required. Example: (2+3)*2=10 |
| ) | closed bracket | A closed parenthesis to set the evaluation priority. Mandatory open bracket |
| ± | plus minus | Changes sign to opposite |
| = | equals | Displays the result of the solution. Also, intermediate calculations and the result are displayed above the calculator in the "Solution" field. |
| ← | deleting a character | Deletes the last character |
| WITH | reset | Reset button. Completely resets the calculator to "0" |
The algorithm of the online calculator with examples
Addition.
Integer addition natural numbers { 5 + 7 = 12 }
Addition of whole natural and negative numbers { 5 + (-2) = 3 }
Adding decimal fractional numbers ( 0.3 + 5.2 = 5.5 )
Subtraction.
Subtraction of whole natural numbers ( 7 - 5 = 2 )
Subtraction of whole natural and negative numbers ( 5 - (-2) = 7 )
Subtraction of decimal fractional numbers ( 6.5 - 1.2 = 4.3 )
Multiplication.
Product of whole natural numbers ( 3 * 7 = 21 )
Product of whole natural and negative numbers ( 5 * (-3) = -15 )
Product of decimal fractional numbers ( 0.5 * 0.6 = 0.3 )
Division.
Division of whole natural numbers ( 27 / 3 = 9 )
Division of whole natural and negative numbers ( 15 / (-3) = -5 )
Division of decimal fractional numbers ( 6.2 / 2 = 3.1 )
Extracting the root from a number.
Extracting the root of an integer ( root(9) = 3 )
Extracting the root from decimal fractions( root(2.5) = 1.58 )
Extracting the root from the sum of numbers ( root(56 + 25) = 9 )
Extracting the root of the difference in numbers ( root (32 - 7) = 5 )
Squaring a number.
Squaring an integer ( (3) 2 = 9 )
Squaring decimals ( (2.2) 2 = 4.84 )
Convert to decimal fractions.
Calculating percentages of a number
Increase 230 by 15% ( 230 + 230 * 0.15 = 264.5 )
Decrease the number 510 by 35% ( 510 - 510 * 0.35 = 331.5 )
18% of the number 140 is ( 140 * 0.18 = 25.2 )
The modern way of life requires constant dynamics. Making calculations on a calculator, we significantly save our time, do not risk making mistakes and get an accurate result. Thanks to the invention of this device, many people have forgotten what shortages and errors in calculations are. However, the calculator is different from the calculator, and if primitive computational functions can be done on mathematical model, then the most complex calculations can be made only with the help of engineering. From now on, acquire this miracle modern technology no need - just ask for help from our engineering calculator online! The program works without additional installation - just go to the electronic page and start acting.
Online engineering calculator functions
A math-type calculator will only help you make primitive calculations. With it, you can do what we were taught in primary school high school:
- addition;
- subtraction;
- division;
- multiplication;
- interest subtraction;
- raising a number to a power;
- finding the square root.
Engineering calculator online includes all these and additional functions that are necessary for complex calculations. Now you do not have to spend extra money to buy this device, because you can make calculations on our website.
In addition to the above, our universal calculator will help you perform the following calculations:
Location:
- sine of the angle;
- tangent;
- cosine;
- cotangent;
- arcsine;
- arc tangent;
- arc cosine;
- inverse tangent.
Online engineering calculator interface
Performing all of the above calculations is quite simple. Our online engineering calculator has a clear interface, and therefore it is very convenient to work with it. In its appearance, it completely imitates a real calculator, so you do not need to study the functions for a long time. Despite this, we enclose detailed instructions and descriptions of each key.
Using our program is also beneficial because the calculations are made instantly - you do not need to update the site page, because the calculator works in flash mode. A huge number of people use our program every day. Among them are students higher institutions, teachers, architects, scientists and other people interested in the accuracy of calculations. The online engineering calculator does not require downloading and installing additional plugins, so you can start using it right now!
It's a small, easy-to-use program designed to make everyday routine calculations easier and requires nothing more than your browser to complete.
You need to make calculations, perform a series of mathematical operations, and in this moment didn’t have a regular electronic calculator or an appropriate program at hand? In this case, this simple and easy-to-use online calculator will become indispensable for you. You have the option to enter data using the visual interface buttons, or directly using the keyboard. The calculator performs all basic operations (addition, subtraction, multiplication, division). The presented online mathematical calculator also allows you to calculate complex expressions, for example: (21-45)/(1.5*2)*(8+2*2)=-96. At your disposal.
online calculator this is far from new. But most of the existing ones are made a few years ago, and have a primitive set of functions. The calculator presented on our site is in no way inferior to the usual calculators for all, and in some ways even surpasses them.
Calculator is a device for mathematical calculations. Many people on earth use a calculator for simple calculations. Calculators are very different from each other: there are simple calculators among the functions that only have multiplication, division, subtraction and addition. There are more "fancy" calculators that can, among other things, raise to a power, etc. There is also online calculator s. For example, on this site in the lower right corner there is an online calculator. An online calculator can save you a lot of time solving various math problems. When calculating any non-trivial engineering problem, having a good calculator (even an online calculator will do) is simply necessary. Imagine for yourself what will happen if you make an arithmetic error when designing a building. The calculator also helps to prepare various financial reports. Pretty not simple task consists of taking a loan from a commercial bank. Many bankers and traders resort to using an online calculator when working with documents.
Calculator(lat. calculātor "counter"):
- An electronic computing device for performing operations on numbers or algebraic formulas;
- A computer program that emulates the functions of a calculator.
- A specialized program that automatically conducts some type of calculation (deposit calculator, pad calculator, etc.)
- Profession (the person who makes the calculation).
In the Soviet Union, the term “microcalculator” was used to refer to a small-sized computing device, which was first used in 1973 for the electronics B3-04 microcalculator. Just "calculators" called large desktop computing devices. Both desktop and microcalculators were officially called "ECVM - electronic keyboard computers."
At present, due to the fact that English language only the term "calculator" (calculator) is used, the term "microcalculator" is out of circulation.
Engineering calculator online
We hasten to present to everyone a free engineering calculator. With it, any student can quickly and, most importantly, easily perform various kinds of mathematical calculations online.
The calculator is taken from the site - web 2.0 scientific calculatorA simple and easy-to-use engineering calculator with an unobtrusive and intuitive interface will truly be useful to the widest range of Internet users. Now, when you need a calculator, visit our website and use the free engineering calculator.
An engineering calculator can perform both simple arithmetic operations and rather complex mathematical calculations.
Web20calc is an engineering calculator that has a huge number of functions, for example, how to calculate all elementary functions. The calculator also supports trigonometric functions, matrices, logarithms and even plotting.
Undoubtedly, Web20calc will be of interest to the group of people who are looking for simple solutions is gaining in search engines query: mathematical online calculator. The free web application will help you instantly calculate the result of any mathematical expression, for example, subtract, add, divide, extract the root, raise to a power, etc.
In the expression, you can use the operations of exponentiation, addition, subtraction, multiplication, division, percentage, PI constant. Parentheses should be used for complex calculations.
Features of the engineering calculator:
1. basic arithmetic operations;
2. work with numbers in a standard form;
3. calculation of trigonometric roots, functions, logarithms, exponentiation;
4. statistical calculations: addition, arithmetic mean or standard deviation;
5. application of a memory cell and user functions of 2 variables;
6. work with angles in radian and degree measures.
The engineering calculator allows the use of a variety of mathematical functions:
Extraction of roots (square root, cubic root, as well as the root of the n-th degree);
ex (e to x power), exponent;
trigonometric functions: sine - sin, cosine - cos, tangent - tan;
inverse trigonometric functions: arcsine - sin-1, arccosine - cos-1, arctangent - tan-1;
hyperbolic functions: sine - sinh, cosine - cosh, tangent - tanh;
logarithms: base two binary logarithm is log2x, base ten base ten logarithm is log, natural logarithm is ln.
This engineering calculator also includes a conversion calculator physical quantities for various measurement systems - computer units, distance, weight, time, etc. With this function, you can instantly convert miles to kilometers, pounds to kilograms, seconds to hours, etc.
To make mathematical calculations, first enter a sequence of mathematical expressions in the appropriate field, then click on the equal sign and see the result. You can enter values directly from the keyboard (for this, the calculator area must be active, therefore, it will be useful to put the cursor in the input field). Among other things, data can be entered using the buttons of the calculator itself.
To build graphs in the input field, write the function as indicated in the example field or use the toolbar specially designed for this (to go to it, click on the button with the icon in the form of a graph). To convert values, press Unit, to work with matrices - Matrix.
