Built in math calculator will help you carry out the simplest calculations: multiplication and addition, subtraction, and division. Online degree calculator will quickly and accurately raise any number to the power of your choice.

The presented engineering calculator contains all possible variations of online calculation programs. site contains trigonometric calculator(angles and radians, degrees), logarithms(Log), factorials(n!), calculating roots, sinuses and arctangents, cosines, tangents online- many trigonometric functions and more.

You can work with the computing program online from any device, in each case the interface size will be adjusted to your device, or you can adjust its size to your liking.

Digits are entered in two ways:

• from mobile devices- input from the phone or tablet display, program interface keys
• from a personal computer- using the electronic display interface, or through the computer keyboard using any numbers

Engineering Calculator Function Manual

To understand the capabilities of the program, we give you a short instruction, for more details see examples of calculations online... The principle of working with a scientific calculator is as follows: you enter the number with which the calculation will be made, then the function or operation button is pressed, then, if required, then another digit, for example, a degree, at the end - an equal sign.

• - inverse function for sin, cos, tan, switches the interface to other functions
• - natural logarithm base "e"
• [ (] and [) ] - introduces parentheses
• - displays the integer part of a decimal number
• - hyperbolic sine
• - sine of a given angle
• - squaring (formula x ^ 2)
• - calculates the factorial of the entered value - the product of n consecutive numbers, starting from one up to the entered number, for example 4! = 1 * 2 * 3 * 4, that is, 24
• - converts from decimal to a format in degrees, minutes, seconds.
• - hyperbolic cosine
• - cosine of an angle
• - the erection of X in the step. igrik (formula x ^ y)
• [y √x]- extraction of the root in the power of y from x
• - Pi number, gives the Pi value for calculations
• - hyperbolic tangent
• - tangent of an angle online, tg
• - helps to raise to the power of 3, to a cube (formula x ^ 3)
• [3 √x]- extract the cubic root
• - toggles the input of numbers in exponential notation and vice versa
• - allows you to enter data in exponential notation.
• - allows us to calculate the remainder of dividing one number by another
• - calculates the decimal logarithm
• - raising ten to an arbitrary power
• - calculates the reciprocal
• - Raising Euler's number to a power
• - cuts off the whole part, leaves the fractional
• - inverse hyperbolic sine
• - arcsine or inverse sine, arcsin or 1 / sin
• - conversion of the angle in degrees, minutes and seconds into decimal fractions of a degree, in more detail
• - inverse hyperbolic cosine
• - arcosine or reverse. cosine arccos or 1 / cos
• - calculates pi multiplied by two
• - return hyperbolic tangent
• - arctangent or reverse tangent, arctan

How to use MR MC M + M- MS

How to use an engineering calculator - by example

How to raise to a power

To build, for example, 12 ^ 3, enter in the following sequence:

12 [ x y] 3 [=]

12, key "X to the degree of igrik", 3, equal sign [=]

Answer: 1728

How to find the cubic root

Let's say we are extracting the cube root of 729, click in this order:

729 [=]

729, [3 √x] "cube root of x", equalities [=]

How to find the root on a calculator

Objective: Find the square root of 36.

Solution: everything is simple, click like this:

36 [ y√ x] 2 [=]

36, [y √x] "root of x, to the degree of igrik", the degree we need is 2, is equal to [=]

With this function, you can find the root to any power, not just the square one.

How to square

For squaring, the online computing program contains two functions:

"X to the degree of igrik", "x squared"

The sequence of data entry is the same as before - first the initial value, then "x ^ 2" and the equal sign, or if not a square, but an arbitrary number, you must press the "x ^ y" function, then indicate the required degree and press the same ".

For example: 45 6 [=]

Answer: forty-five in the sixth step. equals 8303765625

Online trigonometric calculator - examples

How to make an online calculation of sines and cosines, tangents

Please note that the site is capable of operating in both degrees and radians and grads.

1 rad = 57.3 °; 360 ° = 2π rad., 1 deg. = 0.9 degrees or 1 deg. = 0.015708 radians.

To enable one or another measurement mode, press the required button:

where Deg - degrees, Rad - measurement in radians, Grad - in degrees. By default, the calculation mode is enabled in degrees.

For the simplest example, find the sine of 90 degrees. Click:

90 [=]

Answer: unit

Other trigonometric functions are also calculated, for example, we calculate the cosine of 60 °:

60 [=]

Solution: 0.5

The reciprocals are calculated in a similar way. trigonometric functions online at KALKPRO- arcsine, inverse cosine, arctangent, as well as hyperbolic functions sinh, cosh, tanh.

To enter them, you need to switch the interface by clicking, new buttons will appear - asin, acos, atan. The order of data entry is the same: first the value, then the symbol of the required function, be it an acrsine or an arccosine.

Convert with Dms and Deg button on calculator

Allows you to convert an angle from degrees, minutes and seconds to decimal degrees for calculations. makes a reverse translation - in the format “degrees; minutes; seconds ".

For instance, the angle 35 o 14 minutes 04 seconds 53 tenths of a second will be converted into tenths:

35,140453 [=] 35,23459166666666666666

Let's convert to the previous format: 35,23459166666666666666 [=] 35,140453

Decimal logarithm online

The decimal logarithm on the calculator is calculated as follows, for example, we are looking for log units in base 10, log10 (1) or lg1:

1 [=]

It turns out 0 in the end. To calculate lg100, click like this:

100 [=]

Solution: two. How to check yourself? What is a decimal logarithm in general - log base 10. In our example, 2 is the power to which you need to enter the base of the logarithm, that is, 10, to get 100.

The natural logarithm is also calculated, but with a button.

How to use calculator memory

Existing memory buttons: M +, M-, MR, MS, MC.

The MS operation will help to add data to the program memory so that further calculations can be carried out with them.

The MR will display the information stored in memory on the display. MC will delete any data from memory. M- will subtract the number on the online display from the one stored in memory.

Example... Let's add one hundred and forty-five to the program memory:

145

After carrying out other calculations, we suddenly needed to return the memorized number to the screen of the electronic calculator, we simply press:

The screen displays 145 again.

Then we count again, count, and then decided to add, for example, 85 with the memorized 145, for this we press or to subtract 85 from the memorized 145. In the first case, when the total number is returned from the memory, the button will get 230, and in the second, after pressing, it will get 60.

The engineering calculator site will quickly and accurately carry out complex calculations, greatly simplifying your tasks.

The list of calculators and functionality will expand, just add the site to your bookmarks and tell your friends!

This handy calculator performs elementary arithmetic operations (addition, subtraction, multiplication, division) with positive and negative integers and fractions. Actions with percentages, exponentiation, calculating the root of a number, and also the logarithm are available.

Examples are provided for all possible actions. If you need additional functions, then open the engineering calculator.

Arithmetic operations

Addition

Addition combines two numbers (terms) into one (sum of numbers).

2 3 =

Subtraction

Subtraction is the reverse of addition. Subtraction finds the difference between two numbers (the number to be subtracted minus the number to be subtracted).

3 − 2 =

Multiplication

Multiplication combines two numbers into one number - the product of numbers. The two original numbers are called multiplication and multiplier.

2 × 3 =

Division

Division is the inverse of multiplication. Division finds the quotient of two numbers (dividend divided by divisor). Division of any number by 0 is undefined.

4 ÷ 2 =

Actions with fractions

A fraction is a part of a whole or, more generally, any number of equal parts. A regular (simple) fraction consists of a numerator displayed above the bar (or before a slash) and a nonzero denominator displayed below (or after) the bar. Actions with fractions are performed in the same way as with integers.

1 ÷ 2 1 ÷ 4 =

Decimal fractions

A decimal fraction is a fraction, the denominator of which is not explicitly indicated, but is understood as an integer equal to ten to the power of one (10), two (100), three (1000), and so on.

2. 0 3 =

Finding the reciprocal

Reciprocal to x denoted 1 / x or x -1, is a number that, when multiplied by x gives one.

2 1 / x =

Percentage actions

Percentage - hundredth part (denoted by % ), is used to indicate the proportion of something in relation to the whole.

Finding the percentage of a number

40 × 5% =

Increase (decrease) a number by a percentage

40 5% =

Exponentiation

Exponentiation is a mathematical operation written as x y containing two numbers: base x and exponent (or degree) y... When y- a positive integer, exponentiation corresponds to multiple multiplication of the base by itself: that is, x y- product of multiplication of y bases.

2 x y 4 =

Squaring a number

Expression x 2 called "square x" or " x squared ", because the area of ​​a square with a side length x is equal to x× x or x 2.

2 x 2 =

Cubing a number

Expression x 3 called "cube x" or " x in a cube ", because the volume of a cube with a side length x is equal to x× x× x or x 3.

2 x 3 =

Exponentiation of 10

Exponentiation with radix 10 used to represent large or small numbers. For instance, 299792458 m / s(speed of light in vacuum in meters per second) can be written as 2.99792458 × 10 8 m / s and then round to 2.998 × 10 8 m / s.

4 10 x =

It is a small, easy-to-use program designed to facilitate your day-to-day routine calculations, which requires nothing more than your browser to complete.

You need to make calculations, perform a number of mathematical actions, and at the moment you do not have an ordinary electronic calculator or a corresponding program at hand? In this case, this simple and easy-to-use online calculator will become indispensable for you. You have the ability to enter data using 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 a novelty. But most of the existing ones were made several years ago, and have a primitive set of functions. The calculator presented on our website is in no way inferior to the usual calculators, 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 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 are also online calculators. For example, this site has an online calculator in the lower right corner. 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 a must. Imagine what will happen if you make an arithmetic mistake when designing a building. The calculator also helps to prepare various financial statements. Quite not an easy task is when taking a loan from a commercial bank. Many bankers and traders, when working with documents, resort to using an online calculator.

Calculator(lat. calculātor "counter"):

1. Electronic computing device for performing operations on numbers or algebraic formulas;
2. A computer program that emulates the functions of a calculator.
3. A specialized program that automatically conducts some kind of calculations (deposit calculator, contact area calculator, etc.)
4. Profession (the person making the calculation).

In the Soviet Union, the term "microcalculator" was used to designate a small-sized computing device, which was first used in 1973 for the "Electronics B3-04" microcalculator. Large desktop computing devices were simply called calculators. Both desktop and microcalculators were officially called "EKVM - electronic keyboard computers".

At present, due to the fact that in English only the term "calculator" is used, the term "microcalculator" is out of circulation.

Engineering calculator online

We are in a hurry to present a free engineering calculator to everyone. With its help, any student can quickly and, most importantly, easily perform various kinds of mathematical calculations online.

A simple and easy-to-use engineering calculator with an unobtrusive and understandable interface will truly be useful to the widest circle of Internet users. Now, when you need a calculator, visit our website and use a free engineering calculator.

An engineering calculator is capable of performing 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 graphing.

Undoubtedly, Web20calc will be of interest to that group of people who, in search of simple solutions, types a query in search engines: an online mathematical calculator. A free web application will help you instantly calculate the result of some mathematical expression, for example, subtract, add, divide, extract a root, raise to a power, etc.

In the expression, you can use the operations of exponentiation, addition, subtraction, multiplication, division, percentage, constant PI. For complex calculations, use parentheses.

Engineering calculator features:

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-defined functions of 2 variables;
6. work with angles in radian and degree measures.

The engineering calculator allows you to use a variety of mathematical functions:

Extraction of roots (square root, cubic, and n-th root);
ex (e to the 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: binary logarithm base two - log2x, decimal logarithm base ten - log, natural logarithm - ln.

This engineering calculator also includes a quantity calculator with the ability to convert 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 not be superfluous to put the cursor in the input field). Among other things, data can be entered using the buttons on the calculator itself.

To build graphs in the input field, write the function as indicated in the field with examples or use the specially designed toolbar (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.

The modern way of life requires constant dynamics. Making calculations on a calculator, we noticeably 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, there is a difference between a calculator and a calculator, and if primitive computational functions can be done on a mathematical model, then the most complex calculations can only be done with the help of engineering. From now on, there is no need to purchase this miracle of modern technology - just turn to our online engineering calculator for help! The program works without additional installation - just go to the website and start acting.

Functions of an engineering calculator online

A mathematical type calculator will only help you perform primitive calculations. With it, you can do what we were taught in the elementary grades of high school:

• addition;
• subtraction;
• division;
• multiplication;
• deduction of interest;
• 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 don’t have to spend extra money on the purchase of 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:

Finding:

• sine angle;
• tangent;
• cosine;
• cotangent;
• arcsine;
• arctangent;
• arccosine;
• arc cotangent.

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. By its appearance, it completely imitates a real calculator, so you will not need to study the functions for a long time. Despite this, we attach detailed instructions and descriptions for each key.

It is also beneficial to use our program because the calculations are made instantly - you do not need to refresh the site page, because the calculator works in flash mode. A huge number of people use our program every day. Among them are students of higher educational institutions, teachers, architects-designers, scientists and other people interested in the accuracy of calculations. The online engineering calculator does not require downloading and installing additional plugins, and therefore you can start using it right now!