Casio FX-750P

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
Years of production: 1984  Display type: Alphanumeric display  
New price:   Display color: Black  
    Display technology: Liquid crystal display 
Size: 3½"×7½"×½" Display size: 24 characters
Weight: 7 oz    
    Entry method: BASIC expressions 
Batteries: 2×"CR-2032" Lithium Advanced functions: Trig Exp Hyp Lreg Cmem Snd Const 
External power:   Memory functions:  
I/O: Casio I/O     
    Programming model: BASIC 
Precision: 12 digits Program functions: Jump Cond Subr Lbl Ind  
Memories: 2(0) kilobytes Program display: Text display  
Program memory: 2 kilobytes Program editing: Text editor  
Chipset:   Forensic result: 9.00000716758  

fx750p.jpg (40451 bytes)I swear these Casio calculators drive me bonkers. No, not all of them, just some: those, in particular, like this FX-750P, that have a separate ENTER key on the numeric keypad and a carriage return key on the alpha keyboard. Two keys that do not have the same function. So every time you enter a BASIC command and hit ENTER, you get an error message. Groan!

Of course if you use this machine every day, it is easy to get used to this, ahem, "feature", and for all I know, it is quite possibly more practical than the silly MODE key that I so detest on other Casios.

The FX-750P is also superior to typical Casio BASIC machines in other ways. It has a more comprehensive set of functions (including, for instance, hyperbolic functions and statistics), and it also has two RAM card slots for additional memory.

The programming model of the FX-750P is demonstrated by the following example, computing the Gamma function to a high-degree of precision using the Lanczos-approximation. Don't forget to use the correct ENTER key when entering program lines... it's soooo annoying, having to enter the same long line twice!

30 G=2.50662827563+225.525584619/Z-268.295973841/(Z+1)+80.9030806935/(Z+2)
40 G=G=LOG(G-5.00757863971/(Z+3)+.0114684895435/(Z+4))+(Z-.5)*LOG(Z+4.65)-Z-4.65
50 IF X>0 THEN 80
60 ANGLE 1