21627
Generators
MD5 generator
Jak wygenerować skrót wiadomości z użyciem algorytmu MD5?
Generates a message using MD5 algorithm.
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41566
Generators
Pseudo-random number generator without repetition
Calculator generates random numbers without repetition from 0 to n-1.
16714
Generators
SHA-1 generator
Jak wygenerować skrót wiadomości z użyciem algorytmu SHA-1?
Generates a message using SHA-1 algorithm.
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1698622
Life
Rainwater tank
The calculator calculates the amount of collected rainwater from the roof of the given dimensions.
Long description
1084488
Building
Insulation of wall
Jak policzyć izolację ścian?
Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.
346219
Financial
ROCE - an indicator of the efficiency of investment
The calculator calculates ROCE on the basis of these pre-tax profits, total capital and current liabilities ROCE (called Return On Capital Employed) - an indicator of the efficiency and profitability of the investment, which is the capital of the company involved.
15506
Medical
Peak expiratory flow in Asthma
Calculator based on the difference between the maximum and minimum peak expiratory flow (PEF) provides diagnostic information on the state of the patient's asthma.
29511
Math
Number cheerful
Checks the calculator is a large number of so-called gay (Happy Number). Number gay is a natural number is defined as follows: Calculate the sum of squares of digits of the number. Repeat this process for the next results as long as we get the number 1 or the results will be repeated. If you have received as a result of one, the original number is the number of gay. Otherwise, a number bleak.