Number of square-triangle (square triangular number)

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

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.      

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

Calculator gives the equation line passing through the points specified by the user in the Cartesian coordinate system.          

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

Calculator allows to determine the existing combinations for the user-specified string.