Riemann sphere
Videos
In mathematics, the Riemann sphere, named after Bernhard Riemann, is a model of the extended complex plane : the complex plane plus one point at infinity. This extended plane represents the extended c
Riemann sphere: almost the whole earth in stereographic azimuthal projection 1:500.000.000 (254 dpi)
Division by zero
Videos
In mathematics, division by zero, division where the divisor is zero, is a problematic special case. Using fraction notation, the general example can be written as a 0 , where a is the dividend
Handheld calculators, such as this TI-86, typically halt and display an error message after an attempt to divide by zero.