Ben Crowell

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seen Apr 20 at 19:13
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I teach physics at Fullerton College, a community college in Southern California.


53 Answers

newest activity votes
1
A integral equation generated from current density distribution in a wire
1
What are the interesting applications of hyperbolic geometry?
1
An example for a calculation where imaginary numbers are used but don't occur in the question or the solution.
3
Clock Synchronization
2
Diffeomorphism in Euclidean spaces
0
Defining the derivative without limits
4
Defining the derivative without limits
3
What is $dx$ in integration?
1
Ways in which a manifold can be geodesically incomplete
2
Geodesic flows and Curvature
1
Solve the equation $2^x=1-x$
1
Relevance of Euclidean geometry to modern mathematics
12
Why do we need to learn integration techniques?
5
Is there such a thing as discrete Riemannian geometry?
0
Nonstandard extension of a function with a limit
2
Requesting abstract algebra book recommendations
3
Is failing to admit an axiom equivalent to proof when the axiom is false?
3
What exactly is a manifold?
9
How to tell $i$ from $-i$?
-4
Why does creating a model show consistency?
3
How many geosynchronous satellites does it take to cover all earth surface?
1
What is the value of $\sin(x)$ if $x$ tends to infinity?
6
Does an identity exist for ALL functions?
0
Gaussian curvature of an ellipsoid proportional to fourth power of the distance of the tangent plane from the center?
3
How exactly do logic and mathematics interact and what happens when we change the logic?
7
Examples of apparent patterns that eventually fail
1
Proving that the derivative of an odd function is even.
2
Does the centre of mass formula have other applications?
3
How to find all real solution to satisfy this equation without casework or bruteforce?
1
Arranging Couples in a Row
1 2