Sieve of Eratosthenes

The calculator calculates the weighted average of the ratings of the following items.              

Calculator by entering an angle in degrees or radians calculated values ​​of the basic trigonometric functions.

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.      

Multiplication table 20 × 20 gives the opportunity to multiply their arbitrary natural numbers (1-20).

Calculator based on the entered numbers separated by commas calculate the harmonic mean.        

Calculator based on the introduced: the radius of the cylinder base and calculates the area and volume.