Casio fx-991EX Classwiz Review

[Pekis]

(12-21-2017 03:14 PM)lrdheat Wrote:  On the JP900, this procedure produces a syntax error upon providing a guess...

It's surprising because the manual doesn't say anything about that while Casio usually does mention that d/dx and integral are prohibited within solver, as in the manuals for the fx 5800p, fx 991 ms for example.
Was Casio desperately hunting for bytes for it's jp900 ? It would have been better to leave table of periodic elements ... ?
In the 5800p I ended up implementing a simple secant solver in those cases.