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? RPL/HP-48 - numerical S on a << >> integrand ?
08-05-2021, 02:11 PM
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RE: ? RPL/HP-48 - numerical S on a << >> integrand ?
(08-05-2021 01:27 PM)Joe Horn Wrote:  Try writing the program as a "user-defined function" which means storing the argument(s) in local variable(s) like this:

<< -> X << X SIN X SQ - >> >>
or
<< -> X 'SIN(X)-X^2' >>

RPL treats programs like that more like built-in functions when solving, graphing, and so on, so it might help here too.

Unfortunately something like this is refused on HP 48GX :
0
1
<< -> X 'SIN(X)-X^2' >> or << -> X << X SIN X SQ - >> >>
'X'
S
=>
"S Error:
Bad argument type"

I checked the old HP-28s documentation. This calculator was more permissive with S.

---
HP 48GX, Prime G2, 50G. A long time ago : 11C, 15C, 28C, 28S. SwissMicros DM42, DM15L
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RE: ? RPL/HP-48 - numerical S on a << >> integrand ? - OlidaBel - 08-05-2021 02:11 PM



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