Runtime evaluation/In an environment: Difference between revisions
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f(3) = 8; f(5) = 32; f(5) - f(3) = 24</lang> |
f(3) = 8; f(5) = 32; f(5) - f(3) = 24</lang> |
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=={{header|Ruby}}== |
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<lang ruby>def getBinding(x) |
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return binding |
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end |
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def eval_with_x(code, a, b) |
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eval(code, getBinding(b)) - eval(code, getBinding(a)) |
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end |
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puts eval_with_x('2 ** x', 3, 5) # Prints "24"</lang> |
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=={{header|Scheme}}== |
=={{header|Scheme}}== |
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