44248
Calendar
Calculator of days
The calculator allows you to search on the week after the date.
In the empty field, for example enter the date of your birth to see which day of the week it was.
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Calendar
Date calculator
Calculator allows you to calculate the date, which will be after a specified number of days, months and years from a certain date.
98349
Calendar
Perpetual calendar
jak obliczyć dzień tygodnia na podstawie daty?
Calculator gives what day of the week for the date specified by the user.
47563
Calendar
Calculator seniority in Poland
Calculator to calculate the total length of service after the date of employment or dismissal.
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Verifiers
Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
29367
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.
41448
Generators
Pseudo-random number generator without repetition
Calculator generates random numbers without repetition from 0 to n-1.
25622
Chemical
Radioactive decay
The calculator calculates how much radioactive material remains after a certain period of time.
17023
Medical
Risk of Clostridium difficile infection bacilli
Calculator to the data given that the risk of C. difficile infection canes for your body. http://pl.wikipedia.org/wiki/Clostridium_difficile