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Popular calculators

Quadratic function - canonical form - analysis

With this calculator you can perform a complete canonical form analysis of the quadratic function with explanations. The calculator will show you how to find the general form of a quadratic function from its canonical form. Moreover, it will determine the zeros of the function, its vertex coordinates, calculate the delta and present the product and general form of our function.

Laplace expansion, determinant of 4x4 matrix - calculator

With the help of the calculator you will calculate the determinant of the fourth degree matrix by the Laplace Expansion method. You will learn step by step how the calculations are performed and we will get explanations of each action. A useful tool for learning, consolidating, checking your own calculations and understanding the Laplace method.

Square - geometric figure

Thanks to the calculator, you can easily calculate the area of a square, the side of the square, the diagonal of the square, the radius of the circle inscribed and described on the square.

Playfair cipher - encoder / decoder

Playfair cipher online encoder and decoder. Encrypt and decrypt any cipher created in a Playfair cipher.

Online tool for drawing graphs of any function.

With this online function graph plotter, you can draw any function. On one graph you can draw any three functions and compare their parameters. You can create graphs for many equations and functions.

Median of the interval distributive series

With this statistical calculator, you will learn how to calculate the median of an interval distributive series from grouped data.

Equivalent weight of acid

Using this calculator you can calculate the weight equivalent of acid.

Assessment of readiness to lose weight

Did you know that proper preparation is an essential factor in losing weight successfully? This test will not only help you answer the question of whether you have a chance of successful weight loss, but it will also indicate the factors that are necessary in preparation for this process.

How many wallpapers?

With this calculator, you can easily calculate the cost and amount of wallpaper needed to make any room.

Amount of concrete needed for the foundation or ceiling

Calculator of the amount of concrete needed to build a foundation slab or a concrete ceiling.

Daily water requirement

The calculator will calculate how much water you should consume to supplement your daily requirement.

Calculator for maximum heart rate and heart rate zones for training

How to calculate your Maximum Heart Rate (HRMAX)? Which heart rate zones to choose for training and how to calculate the heart rate zones? At what heart rate is the best fat burning, and at what will we increase our efficiency and improve the condition? The calculator for maximum heart rate and heart rate zones can help answer these questions. You will calculate both your maximum and optimal heart rate and select the heart rate ranges for the appropriate training.

Gravitational acceleration

With this calculator you can calculate the gravitational acceleration of a body pulled by another body. The calculator will also help to calculate the distance between the centers of the attracting bodies and the mass of the body producing the gravitational field and attracting the body for which the gravitational acceleration is given.

Molar concentration

Using this calculator you can calculate the molar concentration of the solution, ie the number of moles of a given chemical substance that contains 1 liter of solution.

How to convert cat age to human age? Cat age calculator

How to convert cat's age into human's age? How old is a cat in human years? How long does a cat live? Cat Age Calculator can help you with these and other questions. By giving the cat's age, we will find out how old he would be if he were a human. We can also check what age a cat would be at our age.

Heart attack risk

Thanks to the calculator, you can use several factors to check the degree of risk of a heart attack in the next ten years.

Mode of the series of distributing class intervals

Online calculator calculates the mode of series of distributing class intervals. You learn how to find the Modal value for a grouped data with different intervals between the data classes.

Median, Mode, Arithmetic mean

The online calculator calculates the median called the median value or the average value, the most common numbers in the given set, i.e. the mode, by examining whether it exists, the arithmetic mean and sorts the data in ascending order.

Daltons law of partial volume

Thanks to the calculator, you can calculate the partial volume according to Daltons law.

Arithmetic mean of the interval distributive series - calculator

Calculator of the arithmetic mean of a series of distributing class intervals.



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