fx82MS
fx85MS
fx220 PLUS
fx300MS
fx350MS
(2nd edition / SV.P.A.M.)
Before Using the Calculator
Calculation Modes and Calculator Setup
Basic Calculations
 ▶Inputting Expression and Values
 ▶Arithmetic Calculations
 ▶Fraction Calculations
 ▶Percent Calculations
 ▶Degree, Minute, Second (Sexagesimal) Calculations
 ▶MultiStatements (fx82MS/fx85MS/fx300MS/fx350MS only)
 ▶Using Engineering Notation
 ▶Calculation History and Replay
 ▶Using Memory Functions
Function Calculations
 ▶Pi (π), Natural Logarithm Base e
 ▶Trigonometric Functions, Inverse Trigonometric Functions
 ▶Hyperbolic Functions, Inverse Hyperbolic Functions
 ▶Angle Unit Conversion
 ▶Exponential Functions, Logarithmic Functions
 ▶Power Functions and Power Root Functions
 ▶RectangularPolar Coordinate Conversion
 ▶Factorial (!)
 ▶Random Number (Ran#)
 ▶Random Integer (RanInt#) (fx220 PLUS only)
 ▶Permutation (nPr) and Combination (nCr)
 ▶Rounding function (Rnd)
Using Calculation Modes
Technical Information
Calculation Ranges, Number of Digits, and Precision
The calculation range, number of digits used for internal calculation, and calculation precision depends on the type of calculation you are performing.
Calculation Range and Precision
Calculation Range  ±1 × 1099 to ±9.999999999 × 1099 or 0 

Number of Digits for Internal Calculation  15 digits 
Precision  In general, ±1 at the 10th digit for a single calculation. Precision for exponential display is ±1 at the least significant digit. Errors are cumulative in the case of consecutive calculations. 
Function Calculation Input Ranges and Precision
Functions  Input Range  

sinx cosx 
Deg  0 ≦ x < 9 × 109 
Rad  0 ≦ x < 157079632.7  
Gra  0 ≦ x < 1 × 1010  
tanx  Deg  Same as sinx, except when x = (2n1) × 90. 
Rad  Same as sinx, except when x = (2n1) × π/2.  
Gra  Same as sinx, except when x = (2n1) × 100.  
sin1x, cos1x  0 ≦ x ≦ 1  
tan1x  0 ≦ x ≦ 9.999999999 × 1099  
sinhx, coshx  0 ≦ x ≦ 230.2585092  
sinh1x  0 ≦ x ≦ 4.999999999 × 1099  
cosh1x  1 ≦ x ≦ 4.999999999 × 1099  
tanhx  0 ≦ x ≦ 9.999999999 × 1099  
tanh1x  0 ≦ x ≦ 9.999999999 × 101  
logx, lnx  0 < x ≦ 9.999999999 × 1099  
10x  9.999999999 × 1099 ≦ x ≦ 99.99999999  
ex  9.999999999 × 1099 ≦ x ≦ 230.2585092  
√x  0 ≦ x < 1 × 10100  
x2  x < 1 × 1050  
x1  x < 1 × 10100 ; x ≠ 0  
3√x  x < 1 × 10100  
x!  0 ≦ x ≦ 69 (x is an integer)  
nPr  0 ≦ n < 1 × 1010, 0 ≦ r ≦ n (n, r are integers) 1 ≦ {n!/(nr)!} < 1 × 10100 

nCr  0 ≦ n < 1 × 1010, 0 ≦ r ≦ n (n, r are integers) 1 ≦ n!/r! < 1 × 10100 or 1 ≦ n!/(nr)! < 1 × 10100 

Pol(x, y)  x, y ≦ 9.999999999 × 1099 √x2 + y2 ≦ 9.999999999 × 1099 

Rec(r, θ)  0 ≦ r ≦ 9.999999999 × 1099 θ: Same as sinx 

°’ ” °’ ”← 
a°b’c”: a, b, c < 1 × 10100 ; 0 ≦ b, c The display seconds value is subject to an error of ±1 at the second decimal place. 

x < 1 × 10100 Decimal ↔ Sexagesimal Conversions 0°0°0° ≦ x ≦ 9999999°59° 

xy  x > 0: 1 × 10100 < ylogx < 100 x = 0: y > 0 x < 0: y = n, ^{1}_{2n+1} (n is an integer) However: 1 × 10100 < ylog x < 100 

x√y  y > 0: x ≠ 0, 1 × 10100 < 1/x logy < 100 y = 0: x > 0 y < 0: x = 2n+1, ^{1}_{n} (n ≠ 0; n is an integer) However: 1 × 10100 < 1/x log y < 100 

ab/c  Total of integer, numerator, and denominator must be 10 digits or less (including division marks).  
RanInt#(a, b)  a < b ; a, b < 1 × 1010 ; b  a < 1 × 1010 (a , b are integers) 
Precision is basically the same as that described under "Calculation Range and Precision", above.
Calculations that use any of the functions or settings shown below require consecutive internal calculations to be performed, which can cause accumulation of error that occurs with each calculation.
xy, x√y , 3√ , x!, nPr, nCr; °, r, g (Angle unit: Rad); σx, sx, regression coefficient.
Error is cumulative and tends to be large in the vicinity of a function's singular point and inflection point.
During statistical calculation, error is cumulative when data values have a large number of digits and the differences between data values is small. Error will be large when data values are greater than six digits.