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Mathematics
Di Wang's user avatar
Di Wang's user avatar
Di Wang's user avatar
Di Wang
  • Member for 8 years, 1 month
  • Last seen more than a month ago
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question
8
Conditional Number growth of Hilbert Matrix: Theoretical vs MatLab.
Feb 3, 2018
question
6
Linear Function: f(ax + by) = af(x) + bf(y) vs y = ax+b. [duplicate]
Sep 18, 2018
question
3
Logic Question. Steve, Halen and Jack in Math class
Feb 2, 2017
question
3
independent events in rolling a balanced die once.
Feb 5, 2017
question
3
7 different balls put into 4 identical boxes, how to count?
Mar 26, 2017
answer
3
Conditional Number growth of Hilbert Matrix: Theoretical vs MatLab.
Feb 3, 2018
question
2
Decide if a point is inside quadrangle
Nov 17, 2016
question
2
A tree $T$ has least 3 vertices, the degree of a non-pendant vertex $\ge d$, prove that there are at least d number of pendant vertices in T
Nov 28, 2017
question
2
How to feed data into a polynomial basis function regression (unregularized) for degree n?
Sep 23, 2018
question
1
reflection matrix for any angle
Nov 16, 2016
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8
I wrote a JavaScript to move a cat on canvas: "ฅ(*ΦωΦ*) ฅ" But the cat jumps weirdly