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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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science
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sm32a.zip
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LIBRARY
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SEC.LI
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Text File
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1993-07-16
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65b
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4 lines
sec(0) := 1
sec(pi) := -1
sec(x_) := if(isnumber(x),1/cos(x))