Some essential square roots are better memorised When tackling square roots of complex numbers in an exam, knowing some key square roots in advance can save both time and effort.

Here are 3 easy ways to calculate the square root of a number in Microsoft Excel - using SQRT function, POWER function and Exponential formula.

Useful mathematical concepts, like the number line, can linger for millennia before they are rigorously defined.

A computer made from strands of DNA in a test tube can calculate the square root of numbers up to 900. Chunlei Guo at the University of Rochester in New York state and colleagues developed a ...