Both WP 31S and WP 34S manuals now available for individual POD

[Bit]

(02-24-2015 05:39 AM)walter b Wrote:  I'd very much welcome if

• f'(x) and f"(x) would take the location and return the derivative in X, working as monadic functions;
• Σ and Π would take the counter and return the sum/product, working as monadic functions as well;
• SLV would take two initial estimates of the root in X and Y and return xroot in X, the second last x-value tested in Y, and f(xroot) in Z, working as a function of type (-1) as described in the manual.
• ∫ would take the lower and upper integration limits in Y and X, respectively, and return the (approximated) integral in X and an upper limit of its uncertainty in Y, preserving the rest of the stack.
  

Then I'd vote for including these improvements in the standard FW of the WP 34S.

There's one aspect of this I'm unsure about: proper error handling without xIN/xOUT. Any comments on that?