-E1-
General Guide.................................................................................... 2
Turning on or off .............................................................................. 2
Battery replacement......................................................................... 2
Auto power-off function.................................................................... 2
Reset operation ............................................................................... 2
Contrast adjustment......................................................................... 3
Display readout................................................................................ 3
Before Starting Calculation .............................................................. 4
Using " MODE " keys....................................................................... 4
Using " 2nd " Keys ........................................................................... 4
Corrections ...................................................................................... 4
Undo function .................................................................................. 4
Replay function................................................................................ 5
Memory calculation.......................................................................... 5
Order of operations.......................................................................... 6
Accuracy and Capacity .................................................................... 7
Error conditions ............................................................................... 9
Basic Calculations ............................................................................ 9
Arithmetic calculation..................................................................... 10
Parentheses calculations............................................................... 10
Percentage calculation .................................................................. 11
Display notations ........................................................................... 11
Scientific Functional Calculations ................................................. 13
Logarithms and Antilogarithms ...................................................... 13
Fraction calculation ....................................................................... 13
Angle unit conversions .................................................................. 14
Sexagesimal
↔
Decimal transformation........................................ 15
Trigonometric / Inverse-Tri. functions ............................................ 15
Hyperbolic / Inverse-Hyp. functions............................................... 16
Coordinates transformation ........................................................... 16
Probability...................................................................................... 17
Other functions ( 1/x,
,
3
,
X
, x
2
, x
3
, x
y
, INT, FRAC ) ........ 18
Unit Conversion ............................................................................. 19
Physics constants .......................................................................... 19
Base–n calculations........................................................................ 24
Bases conversions ........................................................................ 25
Block Function ............................................................................... 25
Basic arithmetic operations for bases............................................ 27
Negative expressions .................................................................... 27
Logical operation ........................................................................... 27
Statistical Calculations ................................................................... 27
Entering data ................................................................................. 28
SR-281 / SR-282
Scientific Calculator
