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age 25
visits member for 2 years
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Jan
21
comment Can a continuous function on [0,1] be constructed which is differentiable exactly at two points in [0,1]?
how can a function be continuous everywhere and differentiable nowhere? Does such a function exist?
Feb
26
accepted Solve Multivariate Polynomial
Feb
3
asked Solve Multivariate Polynomial
Jan
30
awarded  Tumbleweed
Jan
20
awarded  Scholar
Jan
20
awarded  Supporter
Jan
20
accepted Solve Matrix Equations
Jan
20
comment Solve Matrix Equations
This is great. How do I choose X and Y?
Jan
20
comment Solve Matrix Equations
I think I can figure out my second question (en.wikipedia.org/wiki/…), but how do I solve for PI?
Jan
20
comment Solve Matrix Equations
Thanks! Two questions: how do I solve for pi? it's also unknown. How do I calculate the Moore-Penrose psuedo-inverse?
Jan
20
awarded  Student
Jan
20
asked Solve Matrix Equations