Casio
fx115D
Casio
fx115MS
Casio
fx115ES Plus

Casio
fx115D

Casio
fx115MS

Casio
fx115ES
Plus

Years
(approximate)

1995

2000s

About
2008

Number of
Keys

44

50
with keypad

50
with keypad

Number of
Digits

10

10

10

Contrast
the Screen?

No

Yes

Yes

Modes

[MODE]:
Engineering
Complex
Numbers
SD (1Var
Stats)
LR
(Linear Regression)
DEG/RAD/GRAD
FIX/SCI/NORM

[MODE]:
Comp
(Compute)
SD (1Var
Stats)
REG
(2Var Stats)
Deg/Rad/Grad
Fix/Sci/Norm
Disp
(ab/c, d/c, Dot, Comma)
Contrast
EQN:
2 x 2
linear system, 3 x 3 linear system, quadratic polynomial, cubic
polynomial

[MODE]:
Comp
(Compute)
Complex
(complex numbers)
Stat
(Statistics)
Base
Table
(f(x), g(x))
Equation:
2 x 2 linear system , 3 x 3 linear system, quadratic polynomial,
cubic polynomial
Vector
Verify
(comparison tests)
[SETUP]:
MathIO/LinearIO
Deg/Rad/Grad
Fix/Sci/Norm
ab/c vs.
d/c
STAT
(frequencies on)
TABLE (f
or f an g)
Recurring
Decimal
Display
(comma/decimal point)
Contrast

Statistics
Regressions

Linear

Linear,
Logarithmic, Exponential, Power, Inverse, Quadratic

Linear,
Quadratic, Logarithmic, Exponential, Power (both a*b^x and a*x^b),
Inverse

Display

One line:
classic postfix notation

2line
display, top: entry, bottom: result

Textbook
(can be set to 2line display)

Exact
Answers

Fractions
(when they are used)

Fractions

Fractions,
Square Root, Pi

Statistical
Registers

On the
keyboard

In two
menus: SSUM, SVAR

In a
menu: STAT

Statistical
Data Entry

With the
[M+] button

With the
[M+] button

In a
table

Multistatement
operations

N/A

Yes (with
[ : ] )

Yes (with
[ : ] )

Rect to
Polar Conversions

View only
(exchange answers with X ←→ Y)

E = r, F
= θ

X = r, Y
= θ
Answer is
displayed

Polar to
Rect Conversions

View only
(exchange answers with X ←→ Y)

E = x, F
= y

X = x, Y
= y
Answer is
displayed

Calculus
Functions

None

Integral,
Derivative, Solve for X

Integral,
Derivative, Solve for X, Sum, Product

Variables

M,
Kin/Kout 16

A,B,C,D,E,F,X,Y,M

A,B,C,D,E,F,X,Y,M

Extras

Engineering
Symbols

Engineering
Symbols

GCD, LMC,
Int, Intg, RandInt, Factoring Integers (FACTOR)

Power

Solar/Battery
Backup: G927

Solar/Battery
Backup: LR44

Solar/Battery
Backup: LR44

Eddie
All
original content copyright, © 20112019. Edward Shore.
Unauthorized use and/or unauthorized distribution for commercial
purposes without express and written permission from the author is
strictly prohibited. This blog entry may be distributed for
noncommercial purposes, provided that full credit is given to the
author.
I will have to look, but I am pretty sure I have a slew of different fx115__ models
ReplyDelete