Notes
Slide Show
Outline
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Calculations, Visualization, and
Simulation
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Chapter Outline
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The Spreadsheet
    • Addresses (column letter and row number, e.g., A1, C12)

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The Spreadsheet
    • Values such as numbers and dates
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The Spreadsheet
    • Formulas allow you to create instructions using mathematical expressions and commands
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Spreadsheet Features
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Spreadsheet Features
  • Formulas can be relative, so they refer to different cells when they are copied
  • Or absolute, so the formula references never change when they are copied
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Spreadsheet Features
  • Automatic recalculation
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Spreadsheet Features
  • Functions (e.g., SUM, AVG, SQRT) are used to automate complex calculations
  • Macros let you store keystrokes and commands so they can be played back automatically
  • Templates offer ready-to-use worksheets with labels and formulas already entered



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Spreadsheet Features
  • Linking spreadsheets together
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Spreadsheet Features
    • Search for information
    • Sort the data by a specific criteria
    • Merge the data with a word processor
    • Generate reports
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“What If?”
  • Spreadsheets allow you to change numbers and instantly see the effects of those changes.
    • “What if I enter this value?”
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Spreadsheet Graphics:
From Digits to Drawings
  • Charts allow you to turn numbers into visual data:
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Spreadsheet Graphics:
From Digits to Drawings
    • Bar charts (use if data falls into a few categories)
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Statistical Software:
Beyond Spreadsheets
  • Accounting and Financial Management software allows you to do electronically handle routine transactions
    such as:
    • writing checks
    • balancing accounts
    • creating budgets
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Statistical Software:
Beyond Spreadsheets
  • Mathematics Processing software turns abstract mathematical relationships into visual objects.


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Statistical Software:
 Beyond Spreadsheets
  • Statistical and data analysis software collects and analyzes data that tests the strength of data relationships.
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Statistical Software:
 Beyond Spreadsheets
  • Scientific visualization software uses shape, location in space, color, brightness, and motion to help us visualize data.


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Calculated Risks: Computer Modeling and Simulation
  • Computer modeling   uses computers to create abstract models of objects, organisms, organizations, and processes


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Computer Modeling and Simulation
  • Examples:
    • computer games (chess boards, sports arenas, and mythological societies)
    • computer models of organisms, objects, and organizations
    • flight simulators and  simulations of science lab activities
    • managing a business, city, or nation

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Computer Simulation
  • Computer Simulations are widely used for research in the physical, biological, and social sciences, and in engineering.
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Computer Modeling and Simulation
  • Schools, businesses, and the military use simulations for training because:
    • Safety: non-threatening environments
    • Economy: less expensive than real life
    • Projection: less threatening to systems
    • Visualization: allows to see and understand
    • Replication: allows repetition of projects
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Computer Simulation:
The Risks
  • Risks:
    • Simulation isn’t reality.
    • Not all factors can be entered into the model or simulation.
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