User Manual
Table Of Contents
- Contents
 - Getting Acquainted — Read This First!
 - Chapter 1 Basic Operation
 - Chapter 2 Manual Calculations
- 1. Basic Calculations
 - 2. Special Functions
 - 3. Specifying the Angle Unit and Display Format
 - 4. Function Calculations
 - 5. Numerical Calculations
 - 6. Complex Number Calculations
 - 7. Binary, Octal, Decimal, and Hexadecimal Calculations with Integers
 - 8. Matrix Calculations
 - 9. Vector Calculations
 - 10. Metric Conversion Calculations
 
 - Chapter 3 List Function
 - Chapter 4 Equation Calculations
 - Chapter 5 Graphing
- 1. Sample Graphs
 - 2. Controlling What Appears on a Graph Screen
 - 3. Drawing a Graph
 - 4. Storing a Graph in Picture Memory
 - 5. Drawing Two Graphs on the Same Screen
 - 6. Manual Graphing
 - 7. Using Tables
 - 8. Dynamic Graphing
 - 9. Graphing a Recursion Formula
 - 10. Graphing a Conic Section
 - 11. Changing the Appearance of a Graph
 - 12. Function Analysis
 
 - Chapter 6 Statistical Graphs and Calculations
- 1. Before Performing Statistical Calculations
 - 2. Calculating and Graphing Single-Variable Statistical Data
 - 3. Calculating and Graphing Paired-Variable Statistical Data
 - 4. Performing Statistical Calculations
 - 5. Tests
 - 6. Confidence Interval
 - 7. Distribution
 - 8. Input and Output Terms of Tests, Confidence Interval, and Distribution
 - 9. Statistic Formula
 
 - Chapter 7 Financial Calculation (TVM)
 - Chapter 8 Programming
 - Chapter 9 Spreadsheet
 - Chapter 10 eActivity
 - Chapter 11 Memory Manager
 - Chapter 12 System Manager
 - Chapter 13 Data Communication
 - Chapter 14 PYTHON (fx-9860GIII, fx-9750GIII only)
 - Chapter 15 Distribution (fx-9860GIII, fx-9750GIII only)
 - Appendix
 - Examination Modes (fx-9860GIII, fx-9750GIII only)
 - E-CON3 Application (English) (fx-9860GIII, fx-9750GIII)
- 1 E-CON3 Overview
 - 2 Using the Setup Wizard
 - 3 Using Advanced Setup
 - 4 Using a Custom Probe
 - 5 Using the MULTIMETER Mode
 - 6 Using Setup Memory
 - 7 Using Program Converter
 - 8 Starting a Sampling Operation
 - 9 Using Sample Data Memory
 - 10 Using the Graph Analysis Tools to Graph Data
 - 11 Graph Analysis Tool Graph Screen Operations
 - 12 Calling E-CON3 Functions from an eActivity
 
 
6-14
k Power Regression Graph
  Power regression expresses y  as a proportion of the power of x . The standard power 
regression formula is y  = a  × x 
b 
, so if we take the logarithm of both sides we get In 
 y  = In a  + b  × In x . Next, if we say X = In x , Y = In y , and A = In a , the formula corresponds to 
linear regression formula Y = A + b X.
       1(CALC) 6( g) 4(Pwr) 
       6(DRAW)
  The following is the power regression model formula.
      y   = a · x 
b 
      a   ..............regression  coefficient
      b   ..............regression  power
k  Sinusoidal Regression Graph
  Sinusoidal regression is best applied for cyclical data.
  The following is the sinusoidal regression model formula.
 y  = a ·sin( bx  + c ) + d 
       1(CALC) 6( g) 5(Sin) 
       6(DRAW)
  Drawing a sine regression graph causes the angle unit setting of the calculator to automatically 
change to Rad (radians). The angle unit does not change when you perform a sine regression 
calculation without drawing a graph.
  • Certain types of data may take a long time to calculate. This does not indicate malfunction.
k Logistic Regression Graph
  Logistic regression is best applied for time-based phenomena in which there is a continual 
increase until a saturation point is reached.
  The following is the logistic regression model formula.
       1(CALC) 6( g) 6( g) 1(Lgst)  
       6(DRAW)
  • Certain types of data may take a long time to calculate. This does not indicate malfunction.
k Residual Calculation
  Actual plot points ( y -coordinates) and regression model distance can be calculated during 
regression calculations.
y = 
c
1 + ae
–bx










