Online engineering calculator with the most accurate calculations! Finding the percentage of a number.

It's a small, easy-to-use program designed to make everyday routine calculations easier, requiring nothing more than your browser to perform it.

Do you need to make calculations, perform a series of mathematical operations, but at the moment you don’t have a regular electronic calculator or corresponding program at hand? In this case, this simple and easy-to-use online calculator will be indispensable for you. You have the option of entering 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 new. 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 calculators familiar to everyone, and in some ways even surpasses them.

Calculator 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 “sophisticated” calculators that can, among other things, raise to powers, etc. There are also online calculator s. For example, on this site there is an online calculator in the lower right corner. An online calculator can save a lot of time in solving various mathematical 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. It is not an easy task to take out a loan from a commercial bank. Many bankers and traders resort to using an online calculator when working with documents.

Calculator(Latin calculātor “counter”):

1. An 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 carries out some type of calculations (deposit calculator, contact pad calculator, etc.)
4. Profession (person doing the calculations).

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

Currently, due to the fact that English language Only the term “calculator” is used; the term “microcalculator” has fallen out of circulation.

Built-in math calculator will help you carry out the simplest calculations: multiplication and summation, 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 programs for calculations. the site contains trigonometric calculator(angles and radians, degrees), logarithms(Log), factorials(n!), calculation of 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 size of the interface will be adjusted to your device, or you can adjust its size to your taste.

Numbers can be entered in two ways:

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

Instructions for the functions of an engineering calculator

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

• - inverse function for sin, cos, tan, switches the interface to other functions
• - natural logarithm to 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 to the entered number itself, for example 4!=1*2*3*4, that is 24
• - converts from decimal form to format in degrees, minutes, seconds.
• - hyperbolic cosine
• - cosine of the angle
• - raising x to step. igrik (formula x^y)
• [y√x]- extracting the root to the y power of x
• - Pi number, gives the Pi value for calculations
• - hyperbolic tangent
• - online tangent, tg
• - helps to raise to the power of 3, to a cube (formula x^3)
• [3√x]- extract the cube root
• - switches entering numbers in exponential notation and back
• - allows you to enter data in exponential notation.
• - allows us to calculate the remainder when dividing one number by another
• - calculates the decimal logarithm
• - raising ten to an arbitrary power
• - calculates the reciprocal value
• - Raising Euler's number to a power
• - cuts off the whole part, leaving the fractional part
• - inverse hyperbolic sine
• - arcsine or inverse sine, arcsin or 1/sin
• - conversion of angle in degrees, minutes and seconds to decimal degrees, more details
• - inverse hyperbolic cosine
• - arcosine or inverse. cosine arccos or 1/cos
• - calculates Pi multiplied by two
• - return hyperbolic tangent
• - arctangent or inverse tangent, arctg

How to use MR MC M+ M- MS

How to use an engineering calculator - with examples

How to raise to a power

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

12 [ x y] 3 [=]

12, “x to the power of igrik” key, 3, equal sign [=]

Answer: 1728

How to find the cube root

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

729 [=]

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

How to find a root on a calculator

Problem: Find the square root of 36.

Solution: it’s simple, click like this:

36 [ y√ x] 2 [=]

36, [y √x] “root of x, to the power igrik”, the power we need is 2, equal to [=]

Using 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 power of igrik”, “x squared”

The sequence of data entry is the same as before - first the original value, then “x^2” and equals, or if not a square, but an arbitrary number, you need to press the “x^y” function, then indicate the required degree and also press ".

For example: 45 6 [=]

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

Trigonometric calculator online - examples

How to calculate online sines and cosines, tangents

Please note that the site can handle both degrees, radians and grads.

1 rad = 57.3°; 360° = 2π radian, 1 degree = 0.9 degrees or 1 degree = 0.015708 radian.

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

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

As the most simple example Let's find the sine of 90 degrees. Click:

90 [=]

Answer: one

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

60 [=]

Solution: 0.5

In a similar way, the inverses are calculated trigonometric functions online on CALCPRO- arcsine, arccosine, arctangent, as well as hyperbolic functions sinh, cosh, tanh.

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

Conversion with Dms and Deg button on calculator

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

For example, angle 35 o 14 minutes 04 seconds 53 tenths of a second will be converted to tenths:

35,140453 [=] 35,23459166666666666666

Let's convert to the previous format: 35.23459166666666666666 [=] 35.140453

Decimal logarithm online

The decimal logarithm on a calculator is calculated as follows, for example, look for log unit to base 10, log10(1) or log1:

1 [=]

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

100 [=]

Solution: two. How to check yourself? What is a decimal logarithm anyway - log to 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 the button.

How to use memory on a calculator

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

The MS operation will help you add data to the program memory so that you can then carry out further calculations with it.

The MR will display the information stored in memory for you. 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 enter one hundred and forty-five into the program memory:

145

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

The screen will display 145 again.

Then we count again, count, and then decide 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, after returning the final number from memory with the button, the result will be 230, and in the second, after pressing, the result will be 60.

The site's engineering calculator will quickly and accurately calculate 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 basic arithmetic operations (addition, subtraction, multiplication, division) with positive and negative integers and fractions. Operations with percentages, exponentiation, root calculations, and logarithms are available.

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

Arithmetic operations

Addition

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

2 3 =

Subtraction

Subtraction is the inverse operation of addition. Subtraction finds the difference between two numbers (the number being reduced minus the number being subtrahed).

3 − 2 =

Multiplication

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

2 × 3 =

Division

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

4 ÷ 2 =

Operations with fractions

A fraction is a part of a whole or, more generally, any number of equal parts. A common (simple) fraction consists of a numerator, displayed above (or before) the slash, and a non-zero denominator, displayed below (or after) the slash. Operations with fractions are performed in the same way as with whole numbers.

1 ÷ 2 1 ÷ 4 =

Decimals

Decimal is a fraction whose denominator is not explicitly stated, 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 of a number

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

2 1/x =

Actions with interest

Percent - hundredth part (indicated by % ), 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, including two numbers: base x and exponent (or degree) y. When y- a positive integer, exponentiation corresponds to multiplying 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 side length x equal to x× x or x 2.

2 x 2 =

Cube a number

Expression x 3 called "cube" x" or " x cubed" because the volume of a cube with side length x equals x× x× x or x 3.

2 x 3 =

Raising the number 10 to the power

Exponentiation with a base 10 used to indicate large or small numbers. For example, 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 =

The modern way of life requires constant dynamics. By 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, calculator is different from calculator, and if primitive computational functions can be done using a mathematical model, then the most complex calculations can only be done using an engineering model. 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 electronic page and get started.

Functions of an online engineering calculator

A mathematical type calculator will help you make only primitive calculations. With its help you can do what we were taught in elementary 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 to carry out complex calculations. Now you don’t have to spend extra money on purchasing this device, because you can do the calculations on our website.

In addition to the above, our universal calculator will help you perform the following calculations:

Location:

• sine of angle;
• tangent;
• cosine;
• cotangent;
• arcsine;
• arctangent;
• arc cosine;
• arccotangent.

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 appearance, it completely imitates a real calculator, so you won’t need to study the functions for a long time. Despite this, we include detailed instructions and a description of each key.

Using our program is also beneficial because 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 institutions, teachers, architects-designers, scientists and other people interested in the accuracy of calculations. The online engineering calculator does not require downloading or installing additional plugins, so you can start using it right now!