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39 lines
618 B
Plaintext
39 lines
618 B
Plaintext
NAME
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forall - to evaluate a function for all values of a list or matrix
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SYNOPSIS
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forall(x, y)
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TYPES
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x list or matrix
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y string
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return null value
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DESCRIPTION
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In forall(x,y), y is to the the name of a function; that function
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is performed in succession for all elements of x. This is similar
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to modify(x, y) but x is not changed.
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EXAMPLE
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> global n = 0
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> define s(a) {n += a;}
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> A = list(1,2,3,4)
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> forall(A, "s")
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> n
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10
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> define e(a) {if (iseven(a)) print a;}
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> forall(A, "e")
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2
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4
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LIMITS
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none
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LIBRARY
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none
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SEE ALSO
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modify
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