Model: 30S General: Name: Scientific Calculator Code-Name: Astro Family: ? Logic: expression Features: scientific, hyperbolic, fractions Firsts: swappable keyboard colors Introduction: Date: 1999-04-01 (also reported as 2000-04-13) Price: $14.95 Discontinuation: Date: ? Price: $15.99 as of 2003-01-31 Production-Run: ? Display: Type: LCD Size: top line 7x5 dot matrix bottom line 7 segment Number-Formats: sign, 10 mantissa sign, 7 mantissa, ., exp sign, 2 exp ?digits _ digits _| digits (fractions) ?digits .o digits ' digits " (D.MS) Annunciators: 2nd 2nd key pressed MODE mode selection active STAT statistics mode active ENG engineering notation SCI scientific notation DEG degrees mode RAD radians mode GRAD grads mode FIX fixed decimal mode HYP HYP key pressed LSOLV linear equation solver active QSOLV quadratic equation solver active <- -> digits to the left or right of display ^ v earlier or later results M non-zero number in memory - result is negative, or entry line full K a constant expression can be defined or used x10 result is displayed in engineering or scientific notation; exponent displayed above indicator , thousands separator Data: User-Visible: Smallest: 1E-99 Largest: 9.999999999E99 Signif.-Digits: 10 Internal: Smallest: 1E-99 Largest: 9.99999999999E99 Signif.-Digits: 12 Data-Types-and-Sizes: real, 8 bytes Memory: Named-Registers: A, B, C, D, EQN, X, Y, X1, X2, Y1, Y2 Flags: none Register-Usage: none Numbered-Registers: none Program-Steps: none Program-Editing: none Program-Display: none User-RAM-Bytes: 80 Total-RAM-Bytes: ? ROM-Bytes: ? Machine-State: memory, deg/rad/grad display mode regular, statistics, linear eq, quadratic eq File-Types: none Physical: Technology-Used: ? Processor: ? Chip-Count: ? Power-Source: 2, LR-44 cells Continuous-Memory: yes Expansion-Ports: none I/O-Ports: none Clock: none (auto power off, though) Length: 155mm Width: 81mm Height: 13.8mm Weight: 135g Temperature-Range: Operating: ? to 4? deg C Charging: ? to ? deg C Storage: ? to ? deg C Keyboard: Switches: none Shift-Keys: MODE, purple, above left 2nd, yellow, mid left User-Defined-Keys: none Key-Arrangement:: *** *** *** *** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** *** *** *** ** Key-Labels-Base-Keyboard:: MODE ^ ON (red key) 2nd < > CONST v DATA STATVAR DRG a b/c DEL VRCL log ln PRB CONV STO sin cos tan CL \v/ x^2 ( ) \:- +/- 7 8 9 x E 4 5 6 - MRC 1 2 3 + M+ 0 . \pi ENTER Key-Labels-2nd-yellow-above::  OFF   DMS R<>P SCI/ENG a b/c<> d/c INS CL-VAR 10^x e^x F<>D FIX RCL sin-1 cos-1 tan-1 CL-EQN x\v/ x^-1 >Y >X , hyp    %CHG y^x    % K    ANS M- RESET RND  = Programmable-Operations:: none Non-Programmable-Operations:: % percent of %CHG enter "%CHG()" ( start nesting ) end nesting + addition +/- change sign - subtraction , separate arguments 0-9, . enter digit or decimal point 10^x enters "10^()" 2nd prefix = enter an = sign >X enter X >Y enter Y a b/c fraction entry: 4 2/3 is entered 4 AB/C 2 AB/C 3 a b/c<>d/c convert between proper and improper fraction ANS recall last answer into entry line CL clears entry line, error message, or menu CL-EQN clears EQN CL-VAR clears all variables except EQN CONST enter constant CONV unit conversion, enter value, CONV, selected from unit, ENTER, select to unit and view conversion, then ENTER cos enters "cos()" cos-1 enters "cos-1()" DATA enter statistics data DEL delete character DMS DMS conversion DRG menu E start an exponent e^x enters "e^x()" ENTER complete expression and evaluate F<>D convert between fraction and decimal display FIX sets fixed display mode (choose among "F0123456789") hyp prefix for hyperbolic functions INS toggles insert mode K starts defining a sequence of operators and constants that are added to the expression each time the ENTER key is pressed ln enters "ln()" log enters "log()" M+ add X to memory M- subtrack X from memory MODE cycles among modes MRC recall extra memory; pressing it twice clears memory OFF off ON turns calculator on PRB menu R<>P menu RCL recalls value of variable RESET resets all settings to factory default RND rounds number to match display SCI/ENG menu sin enters "sin()" sin-1 enters "sin-1()" STATVAR analyze statistics STO stores X into variable (EQN can hold expressions with the variables A, B, C, or D) tan enters "tan()" tan-1 enters "tan-1()" VRCL recalls name of variable x multiplication x\v/ enters "x\v/()" x^-1 enters "-1" as a power x^2 enters "2" as a power y^x power \:- division \pi PI \v/ enters "\v/()" Statistics MODE 1 select: 1-VAR 2-VAR CLR-DATA DATA *enter x press v (down arrow) enter frequency (1-VAR) or y (2-VAR) press v (down arrow) repeat from * until done to analyze, press STATVAR press > (right arrow) to scroll through results press ENTER to use a result in 2-VAR, to predict a value for X or Y, select X' or Y' ENTER enter value ENTER n number of valuse x-,y- mean of x or y Sx,Sy sample standard deviation \Gsx,\Gsy population standard deviation \GSx,\GSy sum of all values \GSx^2,\GSy^2 sum of squares of all values \GSxy sum of products of data a linear regression y intercept b linear regression slope r correlaion coefficient x' predicted x y' predicted y Linear Solver MODE 2 enter first equation, using >X and >Y for X and Y using either form: ax+by=c or y=mx+b (presumably storing m in A) , enter the second equation ENTER view X > view Y results are also stored in X and Y Quadratic Solver MODE 3 enter the equation as Ax^2 + Bx + C = 0 or Ay^2 + By + C = 0 ENTER view first root > view second root roots are also stored in X1/Y1 and X2/Y2 Special Keys M+ and CONST together: force on, may also force reset RESET, then hold down 2nd, +/-, and DEL: does self-test 1)D display, end with DRG 2)K keyboard, end with ??? Menus:: CONST: c g G Vm Na e mfe mp... mn R h k c speed of light g accelleration of gravity G gravitational constant Vm molar volume of ideal gas Na Avogadro's number e elementary charge me eletron mass mp proton mass mn neutron mass R molar gas constant h Plank's constant k Boltzmann's constant CONV: inch cm mm mil feet m yard mile km feet^2 m^2 yard^2 mile^2 km^2 acres hectares lb kg Tr.oz oz Pound g degF degC gallon liter B.gal Pint fl.oz Cal kJ atm kPa mmHg cmH2O DMS: deg ' " r g >DMS DRG: DEG RAD GRAD MODE: 0)HOME 1)STAT 2)L SOLV 3)Q SOLV 0 home 1 statistics 2 linear equations 3 quadratic equations PRB: nPr nCr ! RANDM RANDMI R<>P: R>Pr R>P\Gt P>Rx P>Ry RCL: A B C D X1 X2 X Y... Y1 Y2 SCI/ENG:FLO SCI ENG STO: A B C D X1 X2 X Y... Y1 Y2 EQN VRCL: A B C D X1 X2 X Y... Y1 Y2 EQN Bugs/ROM-Versions:: Square root is only accurate to 12 digits. To fix, compute the average of square root(x) and x/square root(x). Internal calculations use 24 digits. Reported by Ralf Fritzsch (Fritzsch@Hamburg.BAW.DE) of Hamburg, Germany, Key in 1 [a b/c] 110 to put in 1/110 as a fraction via the [a b/c] key. The result is: 0/1. Notes:: Introduced at the National Council of Teachers of Mathematics. It competes directly with Casio fx-83 and fx-85. Comes with three key overlays (gray, translucent blue, solid purple). There are five others available as an option (solid blue, translucent red, trsnslucent blue, translucent green, and transclucent purple). Australian kids picked the colors (and names). The HP F1908A is apparently only available in Australia. Has a sliding hard cover like the 38G. Half the keys bring up menus, which allows for a lot of functions in a small package. However, some of the menus set modes, some pick variables, and some just list operations. Tracking which are which can give one a headache. Manufactured by Kinpo (http://www.kinpo.com.tw). It is a modified SR18. From a private e-mail: ... Also, I strongly believe the HP30S is made by Kinpo. When I open it up, I find "SR18" inside on the PCB and case halves. But, there is no SR18 on the Kinpo web site, and nothing that looks like it on the Citizen web site. However, I recently purchased a Datexx DS-834 scientific calculator. http://my.datexx.com/consumer/productinfo.html?p=DS-834 It appears to be a Citizen/Kinpo SR-19S1 ("SR-19S1" is etched on the PCB): http://www.kinpo.com.tw/English/Calculator.htm#sr19s1 Besides the general feel and appearance, what really convinces me that the HP30S is made by Kinpo is that the self test for the Datexx DS-834 is almost identical to the HP-30S. The only difference is that a third option is added that loops through a display contrast test. Here is my HP30S self-test documentation: http://www.rskey.org/~mwsebastian/selftest/hp_test.htm#hp30s Compare it to the Datexx DS-834 self-test: http://www.rskey.org/~mwsebastian/selftest/datexx_test.htm#ds834 ...
I am Craig A. Finseth.
Last modified Saturday, 2012-02-25T17:29:34-06:00.