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Simtel MSDOS - Coast to Coast
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simteldosarchivecoasttocoast2.iso
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sm30a.zip
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DIFF.SM
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1993-10-10
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226b
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8 lines
# This is demo for diff(f(x), x=x0)
diff(ln(x), x=0) # derivative at x=0 is discont
diff(ln(x), x=0+zero) # right-sided derivative at x=0
diff(ln(x), x=0-zero) # left-sided derivative at x=0
ln'(0+zero)
ln'(0-zero)