Scientific Keyboard Challenge, Revisited

On this post:

http://edspi31415.blogspot.com/2014/05/scientific-calculator-keyboard-challenge.html,

I have issued a creativity challenge: design a scientific calculator using only 25 keys.  No restrictions.  I came up with a couple ideas.

Before I present mine, I want to show a great landscape design by Picky Bart.  Thanks for posting PickyBart!:

http://pickyb.blogspot.co.uk/2014/05/proposed-scientific-rpn-hp-quickcalc.html

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The first one is an RPN keystroke programmable calculator:

The next one is a graphing calculator. (or at least an attempt at one).  Since only 25 keys are allowed, this prevents the use of an ALPHA key.  So, soft keyboards via dialogue had to be implemented instead.

Modes:

RPN/Linear/Math IO

DEG/RAD/GRAD

FUNC/POLAR/PARAM/SEQN

a+bi, r<q, REALS

BIN/OCT/DEC/HEX

Language (dialogue bar)

Data:  Edit, Name, Delete

Stat: n, Means, Sums

Dist:  Norm PDF, Norm CDF; iNorm, Bin PDF, Bin CDF, Pois PDF

Pois CDF, Chi PDF; Chi CDF, iChi

List:  { }, sum, average, prod; seq, sorta, sortd, augment;

Dchg, size, position

Regr:  Vars (a, b, c, r), Regr (Lin, Log, Exp, Pwr, Inv, Quad, Cubic,

Sine)

Matrix:  [ ], det, trans, eigen; eigvect, size, position, ref;

rref, spec radius, rank, trace; LQ, LSQ, LU, QR

Prog:

File:  New, Edit, Delete

Input:  " ", Input, Prompt, Menu

Output:  Clear, Display, Output, Graph

Tests:  ==, >< , >, >=; <, <=, and, or

IFTE:  If, Then, Else, EndIf

Loop:  For, Step, Next; Repeat, Until, While, Wend

Ctrl:  Pause, Stop, Error, Subr

String:  length, sub, left, right; >expr, >string, position, augment

Math:

Frac:  PDQ, a b/c, exact, approx

Hyp:  (hyperbolic)

Prob: x!, nCr, nPr, gamma; rand, randint, randnorm, dice

Cmplx: abs, arg, real, imag; >Polar, >Rect

Parts: IP, FP, round

Calc:  derivative, integral, S, P

Constants: (24)

Conversions: (12 pairs)

Base:

Mark: b, o, h, d

HEX: A, B, C, D; E, F

Logic: and, or, not, xor; xnor, shift right, shift left, 2's

Utility:

RPN: swap, roll down, roll up, drop; over, pick, view, dupn

Solver: New, Edit, Delete, Solve

ALPHA: - enter message and press enter

CAPS (Keyboard), lower (keyboard), Symb (! @ # $ % ^ & * ( ) { } and math symbols), Greek  I may have forgot something but I think I got all the basics covered.

This post is property of Edward Shore  - 2014