Integral in solve on HP 42S?

[Gerald H]

(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.