784 reputation
212
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visits member for 1 year, 2 months
seen Jul 24 at 19:50

Jul
2
awarded  Curious
Jun
10
awarded  Yearling
Jan
24
asked Construction of Orthonormal Polynomials
Nov
8
awarded  Taxonomist
Oct
2
asked Maximum volume of parallelepiped
Oct
2
accepted Calculus of variations minimum
Sep
30
comment Calculus of variations minimum
So I solved the E-L equation to solve for x(t). But how do I show it is a maximum?
Sep
29
asked Calculus of variations minimum
Sep
27
accepted Dealing with a non-linear oscillator
Sep
26
comment Dealing with a non-linear oscillator
How do I do that?
Sep
26
asked Dealing with a non-linear oscillator
Sep
20
asked Solving Non-Linear differential equation
Sep
10
asked Finding a transformation matrix of rotating an axis
Sep
10
accepted Finding a vector that has 0 curl and 0 div
Sep
8
comment Finding a vector that has 0 curl and 0 div
@achillehui that did it. I wasnt accounting for the fact that each cos should be cos(kx) and that the sum of the k^2 has to be 0! If you make that an answer Iwill select it as best
Sep
7
asked Finding a vector that has 0 curl and 0 div
Aug
20
asked Bar symbol over a matrix
Aug
20
accepted System of matrix equations.
Aug
20
revised System of matrix equations.
added 166 characters in body
Aug
20
asked System of matrix equations.