On Tue, Jul 11, 2023 at 12:40:30PM -0700, 'Nasser M. Abbasi' via FriCAS - 
computer algebra system wrote:
> 
> Why this error " Error detected within library code:   Shouldn't happen" 
> shows up first time integrate is called, then the second time, the error do 
> not show up? 
>
> It seems something got loaded after first call? May be this something needs 
> to be loaded earlier?

Thanks for reporting this.  I will investigate, but there are various
caches involved and code can take different path on second run.

> 
> (1) -> integrate((c*(b*x^2+a)^(1/2))^(3/2)/x^4,x)                      
>  
>    >> Error detected within library code:
>    Shouldn't happen
> 
> (1) -> integrate((c*(b*x^2+a)^(1/2))^(3/2)/x^4,x)
> 
>                           +------------+
>                +--------+ |  +--------+
>            x   |  2       |  |  2
>          ++  c\|%A b + a \|c\|%A b + a
>    (1)   |   --------------------------- d%A
>         ++                 4
>                          %A
>                                          Type: 
> Union(Expression(Integer),...)

-- 
                              Waldek Hebisch

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