Outer
 Usage
Notes
 Further Examples
Outer combines each element from one list with each element of another. This gives all possible pairs from the two lists.
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You can also combine elements from more than two lists.
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This evaluates f, g, and h at x and y.
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The function ff combines elements of the sublists of a nested list.
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The outer product of a  tensor and a  tensor is a  tensor.
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Giving Outer additional numerical arguments treats multidimensional tensors as if they were more shallow. Here the two first-level entries, {a,b} and {c,d}, of tensor1 are combined with {1,2}, {3,4}, {5,6} and so on, which are the six second-level entries of tensor2.
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Here is one way to define the Kronecker product of two square matrices. This loads the LinearAlgebra`MatrixManipulation` package.
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This defines the Kronecker product.
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Here are two square matrices.
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Here is their Kronecker product.
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