Calculator insert numbers online. Engineering Calculator
online calculator is a much needed tool, always available in your browser, for a wide range of people who need to quickly make calculations without resorting to any application programs. This online calculator, which we offer to use directly on our site, is free from the shortcomings of many similar services and applications, such as incorrect calculation results or insufficient mathematical functionality. Our one of the best and most powerful calculators is designed for any, simple and complex calculations: percentages, trigonometric functions, logarithms, extracting roots and much more from the field of higher mathematics.
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One of the main features of our calculator is the ability to build graphs, this rare feature will be useful for both schoolchildren and students, and people involved in scientific activity. Our service is designed not only for students and researchers, it can also be useful for business representatives, accountants, financiers and many other people whose professional activity associated with frequent mathematical calculations. Now you do not need to look for a calculation program on your computer, or carry a calculating machine with you, just go to this site and use the calculator online
Free calculator is our new online service, which is based on the idea of providing all website visitors with unlimited access to the calculator for free from any computer, tablet or smartphone. Around the clock, anywhere where there is Internet! The site offers to use this free calculator with the widest possibilities without user registration.
This free calculator is quite simple and easy to learn, but not everyone will be able to use all the functionality of the calculator without a special instruction that we have prepared for you. The instruction will inform you in detail about the correct notation of mathematical operations and about all the functions of the calculator on concrete examples. All this to make it easy and convenient for you to use our calculator.
Depending on your requirements and the level of complexity of calculations, the calculator can be used as a regular calculator - to perform basic arithmetic operations, or as an engineering calculator - for mathematical calculations. increased complexity with additional features. For all types of operations with a free calculator, there are examples in the instructions.
To use the calculator, you need to enter numbers and characters using the manipulator (mouse) by clicking on the button panel of the calculator itself. The sequence of entered mathematical expressions will be displayed on the virtual display, and after pressing the “equals” button, the calculator will instantly perform calculations and give the required result without deleting the sequence itself from the “display”. You can also perform calculations from the keyboard, for this, first of all, click once with the left mouse button on the data entry field. After that, start entering data from the numeric keypad. Pressing the "enter" key is equivalent to the "equals" button. For more information about managing the math calculator, see
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 as simple arithmetic operations, as well as rather complex mathematical calculations.
Web20calc is an engineering calculator that has great amount functions, for example, as the calculation of 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 systems measurements - 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.
A percent in mathematics is called a hundredth of a number. For example, 5% of 100 equals 5.
This calculator will allow you to accurately calculate the percentage of a given number. There are various calculation modes. You can 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 is if you need to calculate what percentage is X of Y. X and Y are numbers, and you are looking for the percentage of the first in the second
- The third mode is the addition of 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?
Frequent tasks
Task 1. An individual entrepreneur receives 100 thousand rubles every month. He works on a simplified basis and pays taxes of 6% per month. How much does an individual entrepreneur have to pay taxes per month?Solution: We use the first calculator. Enter the bet 6 in the first field, 100000 in the second
We get 6000 rubles. - amount of tax.
Problem 2. Misha has 30 apples. 6 he gave 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 Kolya's deposit will be replenished with.
Solution: use the 3rd calculator. Enter 1 in the first field, 10000 in the second. We press the calculation, we get the amount of 10100 rubles.
A percentage is one hundredth of a number taken as a whole. Percentages are used to indicate the ratio of a part to a whole, as well as to compare quantities.
1% = 1 100 = 0,01
The interest calculator allows you to perform the following operations:
Find percentage of a number
To find a percentage p from a number, you need to multiply this number by a fraction p 100
Let's find 12% of the number 300:
300 12
100
= 300 0.12 = 36
12% of 300 equals 36.
For example, a product costs 500 rubles and a 7% discount applies to it. Find the absolute value of the discount:
500 · 7
100
= 500 0.07 = 35
Thus, the discount is 35 rubles.
What percentage is one number of another
To calculate the percentage of numbers, you need to divide one number by another and multiply by 100%.
Let's calculate how many percent is the number 12 of the number 30:
12
30
100 = 0.4 100 = 40%
The number 12 is 40% of the number 30.
For example, a book contains 340 pages. Vasya read 200 pages. Let's calculate how many percent of the whole book Vasya has read.
200
340
100% = 0.59 100 = 59%
Thus, Vasya read 59% of the entire book.
Add a percentage to a number
To add to the number p percent, you need to multiply this number by (1 + p 100)
Let's add 30% to the number 200:
200 (1+ 30
100
) = 200 1.3 = 260
200 + 30% equals 260.
For example, a subscription to the pool costs 1000 rubles. From next month they promised to raise the price by 20%. Let's calculate how much the subscription will cost.
1000 (1+ 20
100
) = 1000 1.2 = 1200
Thus, the subscription will cost 1200 rubles.
Subtract a percentage from a number
To subtract from the number p percent, you need to multiply this number by (1 - p 100)
Subtract 30% from the number 200:
200 (1 - 30
100
) = 200 0.7 = 140
200 - 30% equals 140.
For example, a bicycle costs 30,000 rubles. The store gave him a 5% discount. Let's calculate how much the bike will cost, taking into account the discount.
30000 (1 - 5
100
) = 30000 0.95 = 28500
Thus, the bike will cost 28,500 rubles.
By what percentage is one number greater than the other?
To calculate how many percent one number is greater than another, you need to divide the first number by the second, multiply the result by 100 and subtract 100.
Let's calculate how many percent the number 20 is greater than the number 5:
20
5
100 - 100 = 4 100 - 100 = 400 - 100 = 300%
The number 20 is greater than the number 5 by 300%.
For example, the salary of a boss is 50,000 rubles, and an employee is 30,000 rubles. Find by how many percent the boss's salary is higher:
50000
35000
100 - 100 = 1.43 * 100 - 100 = 143 - 100 = 43%
Thus, the boss's salary is 43% higher than the employee's salary.
By what percentage is one number less than the other?
To calculate how many percent one number is less than another, you need to subtract from 100 the ratio of the first number to the second, multiplied by 100.
Calculate how many percent the number 5 less than number 20:
100 - 5
20
100 = 100 - 0.25 100 = 100 - 25 = 75%
The number 5 is less than the number 20 by 75%.
For example, freelancer Oleg in January completed orders for 40,000 rubles, and in February for 30,000 rubles. Let's find by what percentage Oleg earned less in February than in January:
100 - 30000
40000
100 = 100 - 0.75 * 100 = 100 - 75 = 25%
Thus, in February Oleg earned 25% less than in January.
Find 100 percent
If number x this is p percent, then you can find 100 percent by multiplying the number x on the 100p
Finding 100% if 25% is 7:
7 · 100
25
= 7 4 = 28
If 25% equals 7, then 100% equals 28.
For example, Katya copies photos from her camera to her computer. 20% of photos were copied in 5 minutes. Let's find how much time the copying process takes:
5 · 100
20
= 5 5 = 25
We get that the process of copying all photos takes 30 minutes.
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, a calculator is different from a calculator, and if primitive computational functions can be done on a mathematical model, then the most complex calculations can be done only with the help of an engineering one. 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 of these additional functions required 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 detailed instructions and a description 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!