Useful tips for everyday
How do you make a comma separated list into a column? How can a comma separated list be converted into cells in a column for…
Why is there a peak at 0 Hz? Zero frequency means DC. A peak at zero means the signal has some nonzero average. Even though…
How does current change for resistors in series? In a series circuit, the output current of the first resistor flows into the input of the…
How can I cut MP3 without recoding? mp3DirectCut is a lossless editor for MP3 (and to a degree, MP2 and AAC) audio files, able to…
What does it mean when your charger is burning? If your charger reaches burning temperatures, it is not normal and there is a big problem.…
How do you find the average spectrum? Calculating an average spectrum involves averaging across common frequencies in multiple spectra. Consider an example in which you…
Can I clean a circuit board with alcohol? For electronic printed circuit board (PCB) assembly, you will find isopropyl alcohol being used either to clean…
How do I change Data on multiple worksheets at the same time? First of all, click on the tab name of the first of the…
Does load reduce voltage? So, the voltage drop is real — the measured voltage is what your load gets. The more current it draws from…
How many features are important for genetic algorithm? Since the genetic algorithm is a stochastic optimization method, the individuals’ genes are usually initialized at random.…