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<p>All,</p>
<p>Below are further, shocking results from tests of calculator
numerical integration algorithms. All the listed devices were
made to perform numerical integration with respect to x from 0
to 6 of the function: e^(x^3). I cribbed this stress test from
some postings on an HP calculator forum. The results are:</p>
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<p><font face="DejaVu Sans Mono">Canon F789SGA
5.963938092e91 <br>
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<p><font face="DejaVu Sans Mono">Casio fx-991ES PLUS</font><font
face="DejaVu Sans Mono"><font face="DejaVu Sans Mono">
5.963938092e91</font> </font></p>
<p><font face="DejaVu Sans Mono">Casio fx-991EX </font><font
face="DejaVu Sans Mono"><font face="DejaVu Sans Mono">5.963938092e91</font>
</font></p>
<p><font face="DejaVu Sans Mono">Hewlett-Packard HP50g </font><font
face="DejaVu Sans Mono"><font face="DejaVu Sans Mono">5.963938092e91</font>
(rounded to ten SF)<br>
</font></p>
<p><font face="DejaVu Sans Mono">Sharp EL-W506 </font><font
face="DejaVu Sans Mono">7.466216848e91 *** relative error
> 25% ***<br>
</font></p>
<p><font face="Courier New, Courier, monospace"><font face="DejaVu
Sans Mono">Sharp EL-W506T </font></font><font
face="Courier New, Courier, monospace"><font face="DejaVu Sans
Mono"><font face="DejaVu Sans Mono">7.466216848e91</font>
"</font></font><font size="+1" face="Courier New, Courier,
monospace"> " "</font></p>
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<p>Would anyone here feel at ease calculating the volume of a
pressure vessel by numerical integration using either of the
Sharp devices?</p>
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<p>Ho, hum,<br>
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<p>Olwen<font size="+1" face="Courier New, Courier, monospace"><br>
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