How to identify animal tracks, burrows and other signs of wildlife in your neighborhood

From snails to skunks, squirrels to cicadas, most of our neighbors are quiet and seldom interact with us, but they play ...

Scientists asked ChatGPT to solve a math problem from more than 2,000 years ago — how it answered it surprised them

We've wondered for centuries whether knowledge is latent and innate or learned and grasped through experience, and a new ...

How to Know When You Should Repair a Foundation Crack

Learn how to tell when a foundation crack might indicate a serious structural problem—and when you can repair it yourself and ...
IEEE

Advantages of Square-Root Extended Kalman Filter for Sensorless Control of AC Drives

Abstract: This paper is concerned with a fixed-point implementation of the extended Kalman filter (EKF) for applications in sensorless control of ac motor drives. The sensitivity of the EKF to ...
GitHub

A package to compute square roots and cube roots to arbitrary precision.

big.Float.Sqrt requires a finite precision to be set ahead of time. The answer it gives is only accurate to that precision. This package does not require a precision to be set in advance. Square root ...
IEEE

Square-Root Sigma-Point Information Filtering

Abstract: The sigma-point information filters employ a number of deterministic sigma-points to calculate the mean and covariance of a random variable which undergoes a nonlinear transformation. These ...