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Arrays - Introduction

Arrays - Introduction. What are arrays? When are they used/useful?. Many examples. Definition: ARRAYS. What? ONE variable that contains MORE THAN ONE value. VECTORS ( 1 D) . MATRICES ( 2 D, 3 D.. ). pressures. velocity. densities. temperatures. When to use arrays.

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Arrays - Introduction

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  1. Arrays - Introduction What are arrays? When are they used/useful? Many examples

  2. Definition: ARRAYS • What? • ONE variable that contains MORE THAN ONE value. VECTORS (1D) MATRICES (2D,3D..) pressures velocity densities temperatures

  3. When to use arrays • Data Base (Keep data together)

  4. Examples Database “VECTORS” Keep the top 5 scores: Keep the part numbers of a specific Gas Engine:

  5. When to use arrays • Keep data together (data base) • Create data tables (financial analysis…)

  6. Example Data Tables “MATRIX” Financial: Loan Analysis

  7. When to use arrays • Keep data together (data base) • Create data tables (multiplication, sine, cosine, financial analysis…) • Study properties of fluids (CFD)

  8. CFD Shock Waves Aerodynamics CFD = Computational Fluid Dynamics ->Solve and analyze problems that involve fluid flows Shock Waves

  9. CFD Shock Waves Aerodynamics Matrices: Grids or Mesh T : temperature P : pressure u : velocity : density Fluid Flow

  10. CFD Shock Waves Aerodynamics Matrices: Grids or Mesh 1st layer : T 2nd layer: P 3rd layer: 4th layer: u Fluid Flow Or.. 1 unique 3Dimensional array !!!

  11. When to use arrays • Keep data together (data base) • Create data tables (multiplication, sine, cosine, financial analysis…) • Study properties of fluids (CFD) • Upload tremendous amount of data from files

  12. Example Files • Online Data Files can be downloaded & Analyzed

  13. When to use arrays • Keep data together (data base) • Create data tables (multiplication, sine, cosine, financial analysis…) • Study properties of fluids (CFD) • Upload tremendous amount of data from files Etc…

  14. Lessons Learned • What is an array? • Difference between “vector” and “matrix” • Various examples showing the big pictures of arrays • What’s next? Creating arrays using MATLAB!

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