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For questions on writing functions (pure or using Set/SetDelayed) for any purpose, including the features that may be incorporated in those functions, such as options, patterns and conditions.

5 votes

How to test a recursive formula using Mathematica?

Without trying to solve the specific problem, here is some guidance on using recursion. First, make sure to use the := symbol, which is SetDelayed. This will make your expressions act like a function …
Kenric's user avatar
  • 334
4 votes

How to return unevaluated variable?

Why not define your function with two input variables? myfunction[a_, b_] := Module[{}, 1 + (2 a - 1) b ] That way you can assignments like, Although it's a bit more complex if you want a two-variabl …
Kenric's user avatar
  • 334
0 votes

ProbabilityDistribution with variable number of dimensions

Thank you JimB, your suggestion worked well. Use of the Sequence function which strips a layer of lists is part of what I was having difficulty with. Here is a simple example of a multivariate norma …
Kenric's user avatar
  • 334
4 votes
2 answers
139 views

ProbabilityDistribution with variable number of dimensions

I would like to construct a ProbabilityDistribution with a variable number of dimensions. I tried to use $Assumptions = x ∈ Vectors[d, Reals] so that the variable x would be an unspecified vector wit …
Kenric's user avatar
  • 334