There are two formulae for standard deviation. \(s = \sqrt {\frac{{\sum {{{(X - \bar X)}^2}} }}{{n - 1}}}\) (where n is the sample size). The second formula is a re ...

Physicists from the Indian Institute of Science (IISc) have found that pure mathematical formulae used to calculate the value of pi 100 years ago by Indian mathematician Srinivasa Ramanujan has ...

Fortunately, it seems that Microsoft understands my plight and has made formula creation a lot easier in a recent update. Now you don't need to bang your head against a wall to get things working; you ...