Hewlett-Packard HP-33S
Datasheet legend
Ab/c:
Fractions calculation
AC: Alternating current BaseN: Number base calculations Card: Magnetic card storage Cmem: Continuous memory Cond: Conditional execution Const: Scientific constants Cplx: Complex number arithmetic DC: Direct current Eqlib: Equation library Exp: Exponential/logarithmic functions Fin: Financial functions Grph: Graphing capability Hyp: Hyperbolic functions Ind: Indirect addressing Intg: Numerical integration Jump: Unconditional jump (GOTO) Lbl: Program labels LCD: Liquid Crystal Display LED: Light-Emitting Diode Li-ion: Lithium-ion rechargeable battery Lreg: Linear regression (2-variable statistics) mA: Milliamperes of current Mtrx: Matrix support NiCd: Nickel-Cadmium rechargeable battery NiMH: Nickel-metal-hydrite rechargeable battery Prnt: Printer RTC: Real-time clock Sdev: Standard deviation (1-variable statistics) Solv: Equation solver Subr: Subroutine call capability Symb: Symbolic computing Tape: Magnetic tape storage Trig: Trigonometric functions Units: Unit conversions VAC: Volts AC VDC: Volts DC |
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Hewlett-Packard HP-33S
Just when we thought that Ms. Fiorina's HP has given up on the idea of producing decent scientific calculators, they came out with a new line of models, including a brand new RPN scientific calculator, the HP-33S.
Except that it's neither brand new nor quite RPN. No need to worry, it is an RPN model, but it also has an algebraic mode, and that's how it comes up by default. (A victory for the marketing people, I presume, who must have insisted that in order for a calculator to sell well, it must be able to produce accurate results when the user enters 2×2=.) As for its newness, it is essentially an HP-32S is new packaging, but with one enormous improvement: it has a full 32 kilobytes of program/data memory.
Ah, and one more difference. The darn thing is made in China. But apparently, being made in China no longer means rubber keys: the keyboard has a very decent feel, with the well known HP "click" when you press a key.
The bottom line, insofar as I am concerned, is this: There are many calculators I love, but there are only a few I'd prefer to _use_ on a daily basis. The HP-33S appears to be one of them.
Like the HP-32S, this new model also has a built in extended factorial function that can be used with non-integer arguments. Demonstrating the machine's programming model, here again is the complex Gamma function program I wrote for the HP-32S; apart from the 4-digit addresses, an indication of the vastly increased memory space in the HP-33S, the listings are identical. To use it, enter the imaginary part of the argument, hit ENTER, enter the real part, then hit XEQ G.
G0001 LBL G G0002 1 G0003 STO G G0004 CLx G0005 STO H G0006 Rv J0001 LBL J J0002 x>0? J0003 GTO H J0004 RCL H J0005 RCL G J0006 CMPLX× J0007 STO G J0008 Rv J0009 STO H J0010 Rv J0011 1 J0012 + J0013 GTO J H0001 LBL H H0002 STO A H0003 x<>y H0004 STO B H0005 x<>y H0006 0 H0007 2.50662827511 H0008 CMPLX× H0009 0 H0010 83.8676043424 H0011 CMPLX+ H0012 RCL B H0013 RCL A H0014 CMPLX× H0015 0 H0016 1168.92649479 H0017 CMPLX+ H0018 RCL B H0019 RCL A H0020 CMPLX× H0021 0 H0022 8687.24529705 H0023 CMPLX+ H0024 RCL B H0025 RCL A H0026 CMPLX× H0027 0 H0028 36308.2951477 H0029 CMPLX+ H0030 RCL B H0031 RCL A H0032 CMPLX× H0033 0 H0034 80916.6278952 H0035 CMPLX+ H0036 RCL B H0037 RCL A H0038 CMPLX× H0039 0 H0040 75122.633153 H0041 CMPLX+ H0042 0.006 H0043 STO i H0044 Rv I0001 LBL I I0002 RCL B I0003 RCL i I0004 IP I0005 RCL+ A I0006 CMPLX÷ I0007 ISG i I0008 GTO I I0009 STO X I0010 x<>y I0011 STO Y I0012 RCL B I0013 5.5 I0014 RCL+ A I0015 RCL B I0016 0.5 I0017 RCL+ A I0018 CMPLXyx I0019 RCL B I0020 5.5 I0021 RCL+ A I0022 CMPLX+/- I0023 CMPLXex I0024 CMPLX× I0025 RCL Y I0026 RCL X I0027 CMPLX× I0028 RCL H I0029 RCL G I0030 CMPLX÷ I0031 RTN