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If you attempt a calculation containing an improper operation – say division
by zero – the display will show
message, press any one key. This also restores the display prior to the
display.
The HP-15C has the following error messages. (The description of
includes a list of statistical formulas used.)
Error 0: Improper Mathematics Operation
Illegal argument to math routine:
÷, where x = 0.
y, where:
out of Complex mode, y < 0 and x is noninteger;
out of Complex mode, y = 0 and x ≤ 0; or
in Complex mode, y = 0 and Re(x) ≤ 0.
¤, where, out of Complex mode, x < 0.
∕, where x = 0.
o, where:
out of Complex mode, x ≤ 0; or
in Complex mode, x = 0.
Z, where:
out of Complex mode, x ≤ 0; or
in Complex mode, x = 0.
,, where, out of Complex mode, │x│> l.
{, where, out of Complex mode, │x│> l.
O ÷, where x = 0.
l ÷, where the contents of the addressed register = 0.
∆, where the value in the Y-register is 0.
H \, where, out of Complex mode, x< 1.
H ], where, out of Complex mode, │x│> 1.
c p, where:
Appendix A
Error Conditions
Error
205
and a number. To clear an error
Error
Error 2
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