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Math
Number of tetrahedral
Tetrahedral numbers are the natural numbers, for which it is possible to construct a tetrahedron formnego of bullets. They are a special case of the pyramidal numbers.
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Weighted average ratings
The calculator calculates the weighted average of the ratings of the following items.
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Math
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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Math
Trigonometric functions calculator
Calculator by entering an angle in degrees or radians calculated values of the basic trigonometric functions.
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Physical
Core area
The calculator calculates the optimal surface for the heat sink temperature indicator.
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Math
The sum of squares of integers from 1 to n
The calculator calculates the sum of squares of consecutive integers from one to the specified value.
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Health
Calculator Body Surface BSA (Body Surface Area)
Jak obliczyć swoje BSA?
Jak sprawdzić BSA?
The calculator calculates the BSA (Body Surface Area) by the formula Mosteller and Dubois.
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Math
Centroid of the triangle
The calculator calculates the centroid of the triangle. Centroid is the point through which the median of the three triangle. It divides each median in the ratio of 2:1.
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Verifiers
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.