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May
30
revised Can the borders of a map be deformed to give arbitrary area to any region?
explicit algorithm
May
30
revised Can the borders of a map be deformed to give arbitrary area to any region?
added figure
May
27
revised A counterexample to the going down theorem
formatting
May
26
revised Maximizing a quadratic subject to $\lVert x\rVert_2 \le 1$
edited body
May
26
revised How many eyes needed for higher-dimensional vision
minor corrections
May
22
revised How to Interpret Time Scales in a Dynamic System
improved formatting
May
18
revised Initial value problem, $dy/dt=1/y$, $y(0)=0$
corrected minor typos
May
16
revised maximization and minimization
formatting
May
15
revised Logarithm of a Convex Function
rolled back to a previous revision
May
11
revised Three-dimensional art galleries
added picture
May
10
revised Necessary and sufficient condition for the matrix $A = I-2xx^t$ to be orthogonal
added 119 characters in body
May
10
revised Three-dimensional art galleries
added 253 characters in body
May
9
revised Distance between points in a convex set and outside of a convex set.
changed $<, >$ to $\langle, \rangle$
May
6
revised Generalized addition function
fixed associativity
May
5
revised Generalized addition function
more explanation
Apr
29
revised Why does this distribution of polynomial roots resemble a collection of affine IFS fractals?
added 77 characters in body
Apr
25
revised why does the blockwise inversion formula work?
responding to Giusippe's comment
Apr
24
revised Quantized calculus
formatting
Apr
22
revised How does $\cos(\pi ) = -1$?
everybody knows what Wikipedia's URL is
Apr
12
revised $A, B$ sparse imply $AB$ is sparse?
added 538 characters in body