Roots of a quadratic equation

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.

The calculator calculates the coordinates of the point located exactly halfway between two preset points in the two-dimensional plane.          

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

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

GCD + LCM (alg. Euclid) The calculator calculates the greatest common divisor (GCD) and least common multiple (LCM) of two numbers. Long description   Number 1   Your first \ u0105 numbers \ u0119      

Calculator by entering the radius of the sphere is calculated its surface and volume.