Tools like Excel and Google Sheets are ubiquitous these days, and learning how to use them more effectively will quickly ...

Have you ever found yourself wrestling with Excel formulas, trying to calculate moving averages or rolling totals, only to end up frustrated by the constant need for manual adjustments? You’re not ...

The inverse Fourier transform (inverse FFT or iFFT) reverses the operation of the Fourier transform and derives a time-domain representation from a frequency-domain dataset. Figure 1. The inverse ...

The military monitors its service members’ fitness levels to ensure combat physical readiness and minimize loss of personnel to injury. Each military service selects its physical fitness tests to meet ...

If you are using Microsoft Excel to manage numerical data, at some point you're inevitably going to display percentages. Doing so can give you a new insight, or make summarizing heaps of data a bit ...

We calculate compound interest based on frequency. This frequency is the compound frequency, which refers to the number of times an interest is calculated and added to the principal amount within the ...

Variance is a useful analytical tool when it comes to measuring data, and helps you to calculate the range of numbers in a set of data. This is handy for a multitude of reasons, from calculating ...

Abstract: As a research focus within the field of array signal processing, multi-source direction-of-arrival (DOA) estimation in enclosed environments has been paid much attention. Contaminated by ...