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Runtime evaluation/In an environment: Difference between revisions
Scala solution added
(Scala solution added) |
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Line 880:
<code>eval</code> can then use the local variable <code>x</code> in this context.
=={{header|Scala}}==
<lang Scala>object Eval extends App {
def evalWithX(expr: String, a: Double, b: Double)=
{val x = b; eval(expr)} - {val x = a; eval(expr)}
println(evalWithX("Math.exp(x)", 0.0, 1.0))
}</lang>
=={{header|Scheme}}==
Almost identical to the [[Common Lisp]] version above.
Line 886 ⟶ 895:
(at-b (eval `(let ((x ',b)) ,prog))))
(- at-b at-a)))</lang>
=={{header|Sidef}}==
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