48,566 reputation
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bio website uoregon.edu/~noeckel
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visits member for 2 years, 10 months
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Dec
2
reviewed Leave Open Define and plot a piecewise function with parameters
Dec
2
comment How to “undo” SetOptions (restore defaults)
Something like this was used here, although that was about Attributes, and not Options... (+1)
Dec
2
comment How to “undo” SetOptions (restore defaults)
possible duplicate of How to restore function attributes to default
Dec
1
revised How do we solve an equation for a product?
explanation added.
Dec
1
reviewed Close Find item in a big list that contains a specific string
Dec
1
reviewed Close Fitting an implicit function to data with error bars
Dec
1
answered How do we solve an equation for a product?
Nov
29
awarded  Enlightened
Nov
29
awarded  Nice Answer
Nov
27
awarded  Nice Answer
Nov
27
awarded  Nice Question
Nov
26
comment Function to calculate finite difference
@user21 Great - thanks. That's a valuable resource, I think.
Nov
26
comment Function to calculate finite difference
To answer your question, check the documentation (not very easy to find online): tutorial/NDSolveMethodOfLines - explicit formulas are above the heading for FiniteDifferenceDerivative. Maybe this should be closed as "easily found in the documentation" - but it's not that easy to find, so I could also post an answer if needed (or even better: answer your own question).
Nov
25
reviewed Close Parallelization and memoization?
Nov
25
reviewed Close 1D FDTD lens simulation
Nov
25
reviewed Close cteq5 mathematica
Nov
25
reviewed Close webMathematica - MathLink linkname missing or malformed
Nov
25
revised Composition of Multivariable function
formatting
Nov
25
answered Composition of Multivariable function
Nov
25
comment What are the steps using boolean algebra for transforming one equation into another?
Ah, sorry but that's not possible with built-in functions. You can only do it in a single step: BooleanConvert[Ykmin] gives you Ydmin except in a different order.