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CD ROM Paradise Collection 4
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CD ROM Paradise Collection 4 1995 Nov.iso
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SUM.KEY
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1993-11-07
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451b
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* sum external+internal
sum(f,x,xmin,xmax) external
It evaluates the sum of f when x runs from xmin to xmax with the default
step dx=1.
sum(f,x,xmin,xmax,dx) internal
It evaluates the sum of f when x runs from xmin to xmax with step dx.
See also: prod, list, table, infsum, partsum.
e.g. sum(2^n,n,1,5,1.1), sum(x^n,n,1,5).