Online calculator simple calculator engineering calculator. A simple calculator - fast, accurate. Finding the percentage of a number

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 on mathematical model, then the most complex calculations can only be made 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 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 primary school 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 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 higher institutions, teachers, architects, 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!

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 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; for more details, see 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 based on "e"
  • [ (] And [) ] - inserts 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

Task: Find Square root 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

Others are also calculated trigonometric functions, 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, and also 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,

35,140453 [=] 35,23459166666666666666

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

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

Decimal logarithm online

1 [=]

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

100 [=]

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

145

. Let's enter one hundred and forty-five into the program memory:

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

The site's engineering calculator will quickly and accurately perform 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!

Engineering calculator online

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

The calculator is taken from the site - web 2.0 scientific calculator

A simple and easy-to-use engineering calculator with an unobtrusive and intuitive interface will truly be useful to a wide range of Internet users. Now, whenever you need a calculator, go to our website and use the free engineering calculator.

An engineering calculator can perform both simple arithmetic operations and quite 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 are looking for simple solutions types in search engines the query: mathematical online calculator. A free web application will help you instantly calculate the result of some 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, and the PI constant. For complex calculations, parentheses should be included.

Features of the engineering calculator:

1. basic arithmetic operations;
2. working with numbers in a standard form;
3. calculation of trigonometric roots, functions, logarithms, exponentiation;
4. statistical calculations: addition, arithmetic mean or standard deviation;
5. use of memory cells and custom 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:

Extracting roots (square, cubic, and nth root);
ex (e to the x power), exponential;
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 to base two - log2x, decimal logarithm to base ten - log, natural logarithm - ln.

This engineering calculator also includes a value calculator with the ability to convert physical quantities for various measurement systems - computer units, distance, weight, time, etc. Using 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 would be useful to place the cursor in the input field). Among other things, data can be entered using the buttons of the calculator itself.

To build graphs, you should write the function in the input field as indicated in the field with examples or use the toolbar specially designed for this (to go to it, click on the button with the graph icon). To convert values, click Unit; to work with matrices, click Matrix.

This handy calculator performs basic arithmetic operations (addition, subtraction, multiplication, division) with positive and negative integers and fractions. Actions 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 commonly, in a general sense, any quantity 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 x Reverse number to , denoted 1/x or x -1 x, is a number that, when multiplied by

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

- product of multiplication of y bases.

2 x y 4 =

Squaring a number Expression x 2 x called "square" x" or " x squared" because the area of ​​a square with side length x× x 1/x Expression.

equal to

2 x 2 =

Squaring a number Cube a number x 3 x called "square" x called "cube" x cubed" because the volume of a cube with side length x× x× x 1/x Cube a number.

equals

2 x 3 =

Raising the number 10 to the power 10 Exponentiation with a base 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 up to.

2.998 × 10 8 m/s

4 10 x =
In mathematics, a percentage is one hundredth of a number. For example, 5% of 100 is 5. This calculator will allow you to accurately calculate the percentage of given number

  • . There are various calculation modes available. You will be able to make various calculations using percentages.
  • The first calculator is needed when you want to calculate the percentage of the amount. Those. Do you know the meaning of percentage and amount?
  • The second one is if you need to calculate what percentage X is of Y. X and Y are numbers, and you are looking for the percentage of the first in the second The third mode is adding a percentage of the specified number to given number
  • . For example, Vasya has 50 apples. Misha brought Vasya another 20% of the apples. How many apples does Vasya have?

The fourth calculator is the opposite of the third. Vasya has 50 apples, and Misha took 30% of the apples. How many apples does Vasya have left?

Task 1. An individual entrepreneur receives 100 thousand rubles every month. He works in a simplified manner and pays taxes of 6% per month. How much tax does an individual entrepreneur have to pay per month?

It turns out 0 in the end. To calculate lg100, press this:: We use the first calculator. Enter the bet 6 in the first field, 100000 in the second
We receive 6,000 rubles. - tax amount.

Problem 2. Misha has 30 apples. He gave 6 to Katya. What percentage of the total number of apples did Misha give to Katya?

Solution: We use the second calculator - enter 6 in the first field, 30 in the second. We get 20%.

Task 3. At Tinkoff Bank, for replenishing a deposit from another bank, the depositor receives 1% on top of the replenishment amount. Kolya replenished the deposit with a transfer from another bank in the amount of 30,000. What is the total amount for which Kolya’s deposit will be replenished?

It turns out 0 in the end. To calculate lg100, press this:: We use the 3rd calculator. Enter 1 in the first field, 10000 in the second. Click on the calculation and we get the amount of 10,100 rubles.