project 1 lecture notes
DESCRIPTION
Project 1 Lecture Notes. Table of Contents. Graphing Functions & Trend Lines Demand, Revenue, Cost, and Profit Differentiation Integration Using Solver. Assignment. Read course PowerPoint file: MBD 2 Proj1.pptx (Slides 1-20). Graphing Functions. 2 Methods for graphing used: - PowerPoint PPT PresentationTRANSCRIPT
Project 1 Lecture Notes
Table of Contents• Graphing Functions & Trend Lines
• Demand, Revenue, Cost, and Profit
• Differentiation
• Integration
• Using Solver
Assignment• Read course PowerPoint file:
MBD 2 Proj1.pptx (Slides 1-20)
Graphing Functions• 2 Methods for graphing used:
− Blank Excel file with equally spaced data points (Plotting Points)
− Using Graphing.xlsm file
Plotting Points• Start with blank Excel file
• Generate 2 columns of data- one column of x-values- one column of function values
Plotting Points• To generate the x-values (in a column)
- Given the interval required
- Given the number of points required
Plotting Points• To generate the x-values
- Subtract one from number of points needed
- Divide interval length by this number
- This is the length of each subinterval
Plotting Points• To generate the x-values
- Starting with left endpoint, increase by width of subinterval
- This gives x-value of next point
- Continue until you reach the right endpoint
Plotting Points• To generate the function values (in a column)
- Type function using an “=”
- Use cell references to replace x
Plotting Points• Graphing the function
- Use XY-scatter
- Use Smoothed Lines Without Markers
- Label graphs whenever appropriate
Plotting Points• Special values and functions
- Type PI()
- e Type EXP()
- Type SQRT()
Plotting Points• Ex. Graph the function on the
interval [0, 5] using a blank Excel file with 501 equally spaced points.
• Soln:
173 xexf
Plotting Points• Graph:
-500
-400
-300
-200
-100
0
100
0 1 2 3 4 5 6
x
f (x )
Plotting Points• Piecewise-defined functions
- Use IF statement=IF(statement, rule 1, rule 2)
- statement is a mathematical test- use rule 1 if the statement is true- use rule 2 if the statement is false
- AND function can be used within IF statementEx. AND(0<=A1,3>=A1) tests if A1 is
between 0 and 3
Plotting Points• Ex. Graph the function
using a blank Excel file with 401 equally spaced points.
411432
2 xxxx
xg
Plotting Points• Creating a “plotting points” graph in Excel
• Insert, Scatter, Smooth lines• Right click on plot area• Left click on select data• Add data and format graph
Plotting Points• Soln:
-10
-5
0
5
10
15
20
-6 -4 -2 0 2 4 6
x
f (x )
Plotting Points• Can graph multiple functions simultaneously
• Ex. Graph the functions
using a blank Excel file with 701 equally spaced points.
700400601.04000202.0
xxxx
xg
0,700on 2000004.0 2 xxf
Plotting Points• Soln:
0
50
100
150
200
250
0 200 400 600 800
f(x)
g(x)
Graphing.xlsm• Graphing utility to plot one function
• No cell references used
• Function is typed using the variable x
• Can use parameters (constants) s, t, u, v, or w
Graphing.xlsm
x f (x ) a b stuvw
31
Formula for f (x )ConstantsDefinition Computation Plot Interval
FUNCTION
0
0.2
0.4
0.6
0.8
1
0 0.2 0.4 0.6 0.8 1x
f (x )
Graphing.xlsm• Ex. Graph the function on the
interval [0, 5] using Graphing.xlsm
• Ex. Use Graphing.xlsm to graph the functions on the interval [-4, 4] using the parameter s = 2, 3, 4, and 5.
173 xexf
sxy
Graphing.xlsm• Ex. Graph the function
Using Graphing.xlsm.
700400601.04000202.0
xxxx
xg