When learning object-oriented programming (OOP) in Python, you’ll encounter three types of methods: instance methods, class methods, and static methods. At first glance, they look quite similar — …
Which Intro-to-Programming Path Should a CS Learner Choose?
A comparison of CS50x / CS50P, MITx’s Python intro, and the University of Helsinki’s Python MOOC If you're starting out in computer science, choosing the right introductory course can make a huge …
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Choosing the Right Perspective: Why Problem Setup Matters More Than the Math
In calculus, it’s fascinating that the disk and shell methods both yield the same volume for a solid of revolution. Yet in practice, one can make your work smooth and elegant—while the other can make …
Understanding Dimensions and Finding the Center of Mass of a Spheroid
When we study geometry and physics, we often hear about one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) objects. Understanding these dimensions helps us determine how to locate …
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Disk vs Shell Methods — Explained with Diagrams, Math, and Examples
When a 2-D region is revolved around an axis, it creates a 3-D solid. To find the volume of such a solid, we slice it into many thin pieces, find the volume of each slice, and then integrate (add up) …
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What is an ODE?
An ordinary differential equation (ODE) relates a function y(x) to its derivatives. For example: $latex \frac{dy}{dx}=x$ This equation says the slope of the function y(x) at every point equals …
