Gone with the Wind 8
What was the life condition in Tara?
Why did Scarlett ask Will to stay in Tara?
Who came to Tara surprisingly?
How had Ashley changed?
Why did Scarlett decide to ret...
1.2 Elements of Programming
A programming language is more than just a means for instructing a computer to perform tasks. The language also serves as a framework within which we organize our idea...
Q1: A Plus Abs B
Python’s operator module defines binary functions for Python’s intrinsic (固有的) arithmetic operators. For example, calling operator.add(2,3) is equivalent to calling the expression...
基础的方程:
−kx=md2xdt2-kx=m\frac{\mathrm d ^2 x}{\mathrm d t^2}
−kx=mdt2d2x
d2xdt2+km⏟:=ω2x=0\frac{\mathrm d^2 x}{\mathrm d t^2}+\underbrace{\frac{k}{m}}_{:=\omega^2}x=0
dt2d2x+:=ω2mkx=0
d2xdt2=−ω...
Terminologies

Introduction
Containing resistors and two energy storage eleme...