History variables: Difference between revisions
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(Add Factor example) |
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</pre> |
</pre> |
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=={{header|Julia}}== |
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<lang Julia>mutable struct Historied |
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num::Number |
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history::Vector{Number} |
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Historied(n) = new(n, Vector{Number}()) |
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end |
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assign(y::Historied, z) = (push!(y.history, y.num); y.num = z; y) |
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x = Historied(1) |
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assign(x, 3) |
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assign(x, 5) |
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assign(x, 4) |
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println("Past history of variable x: $(x.history). Current value is $(x.num)") |
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</lang>{{output}}<pre>Past history of variable x: Number[1, 3, 5]. Current value is 4</pre> |
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=={{header|Kotlin}}== |
=={{header|Kotlin}}== |
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<lang scala>// version 1.1.4 |
<lang scala>// version 1.1.4 |
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Currentvalue is 3 |
Currentvalue is 3 |
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</pre> |
</pre> |
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=={{header|M2000 Interpreter}}== |
=={{header|M2000 Interpreter}}== |
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We can make objects type of Group to act as History Variables. Each group has a pointer to a stack object (a linked list). |
We can make objects type of Group to act as History Variables. Each group has a pointer to a stack object (a linked list). |
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