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Area of a rectangle
The calculator can calculate the area of a rectangle.
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Weighted average ratings
The calculator calculates the weighted average of the ratings of the following items.
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Conversion between number bases
Converter allows you to convert numbers between number bases - binary (binary), trójkowym, czwórkowym, Friday, szóstkowym, siódemkowym, octal (octal), dziewiątkowym, decimal (decymalnym) jedenastkowym, dwunastkowym, trzynastkowym, czternastkowym, piętnastkowym, hexadecimal (hex). Typed characters that are not numbers and the letters A, B, C, D, E, F are ignored.
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Trigonometric functions calculator
Calculator by entering an angle in degrees or radians calculated values of the basic trigonometric functions.
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Calculator to the data is given as change the level of urea in the blood after hemodialysis.
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Basic equations and inequalities with absolute value
Calculator applies to the basic issues of the absolute value of the non-zero parameter "a"
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Verification of the social security number in Poland
It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.
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Freezing sea water
Calculator based on the average salinity of the basin are calculated freezing point of the water content by the formula Krummel.