CASIO CLASSWIZ fx-991EX

[lrdheat]

Complex capabilities on the fx-991EX is quite limited. Pretty much limited to +,-,/,*,^integer powers. Trig operation not supported. The 9860, while not complete in it's complex capability, can do much more. It can take sin 1.57+1.52i, but then can't return asin of that result.

That said, it's fun to check out what the $20 level calculators can do! They are calculators, after all, not sophisticated high level devices! The 991EX is a new nice shirt pocketable calculator. The 9860 is a much more capable barely shirt pocketable device at $80ish. NOTHING holds a candle to WP 34 as a pocketable device except perhaps for easily solving equations for multiple variables and easy 3D vector operations...