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ERFS.BAS
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BASIC Source File
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1992-08-29
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785b
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19 lines
' +----------------------------------------------------------------------+
' | |
' | BASWIZ Copyright (c) 1990-1992 Thomas G. Hanlin III |
' | |
' | The BASIC Wizard's Library |
' | |
' +----------------------------------------------------------------------+
DEFSNG A-Z
FUNCTION ErfS! (Nr AS SINGLE)
N = INT(14! * Nr + 3!)
S = 1! / (2! * N - 1!)
FOR J = N - 1! TO 1! STEP -1!
S = 1! / (2! * J - 1!) - Nr * Nr / J * S
NEXT
ErfS! = Nr / .886227! * S
END FUNCTION