Integral in solve on HP 42S?
02-25-2019, 05:17 AM
Post: #4
 Gerald H Senior Member Posts: 1,627 Joined: May 2014
RE: Integral in solve on HP 42S?
(02-24-2019 08:13 PM)Thomas Klemm Wrote:
Code:
00 { 12-Byte Prgm } 01▸LBL "f" 02 MVAR "t" 03 RCL "t" 04 X↑2 05 END

Code:
00 { 28-Byte Prgm } 01▸LBL "∫f" 02 MVAR "x" 03 RCL "x" 04 STO "ULIM" 05 PGMINT "f" 06 INTEG "t" 07 10 08 - 09 END

You can set LLIM and ACC:

0
STO "LLIM"
1e-10
STO "ACC"

And then just use the SOLVER with the program ∫f and the variable x to get

3.10723250595

Cheers
Thomas

Line 002 of programme f is not essential.
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 Messages In This Thread Integral in solve on HP 42S? - lrdheat - 02-24-2019, 06:29 PM RE: Integral in solve on HP 42S? - Thomas Klemm - 02-24-2019, 08:13 PM RE: Integral in solve on HP 42S? - Gerald H - 02-25-2019 05:17 AM RE: Integral in solve on HP 42S? - Werner - 02-25-2019, 07:43 AM RE: Integral in solve on HP 42S? - lrdheat - 02-24-2019, 08:15 PM RE: Integral in solve on HP 42S? - Thomas Klemm - 02-25-2019, 07:47 AM RE: Integral in solve on HP 42S? - Thomas Klemm - 02-25-2019, 08:09 AM RE: Integral in solve on HP 42S? - Werner - 02-26-2019, 07:41 AM RE: Integral in solve on HP 42S? - ijabbott - 02-26-2019, 08:39 AM RE: Integral in solve on HP 42S? - lrdheat - 02-26-2019, 03:15 AM RE: Integral in solve on HP 42S? - Thomas Okken - 02-26-2019, 03:30 AM RE: Integral in solve on HP 42S? - Thomas Klemm - 02-26-2019, 05:30 AM RE: Integral in solve on HP 42S? - Gerald H - 02-26-2019, 09:29 AM

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