Microsoft Office Excel contains a data analysis add-in that allows to to perform a Fourier analysis of a series of numbers. So named for the French mathematician who developed the analytic technique ...

The first step in running regression analysis in Excel is to double-check that the free plugin Data Analysis ToolPak is installed. This plugin makes calculating a range of statistics very easy. It is ...

With trendlines, Excel can project future figures based on previous history. Mary Ann Richardson points the way. Let’s say you are keeping track of monthly sales figures for the past six months ...

When you create a graph that includes dates, Excel 2013 automatically spaces the data in chronological order. This behavior potentially creates irregular spacing with unpredictable formatting. If the ...

I have a set of data, which I charted and then used the 'add trendline' tool to get a decent 2nd order poly. fit with the equation: y = -3E-39x^2 + 4E-19x + 3.4212 However, when I type this equation ...