Lecture6 - Engineering Computation ENG 1D04 ENG 1D04...

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1 Engineering Computation ENG ENG 1D04 1D04 Lecture 6: Two-dimensional arrays & midterm samples Mihai Albu
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2 © Copyright 2008 Mihai Albu & Alan Wassyng
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3 Announcements • Quizzes • Labs • Office hours extended CRL 220 for midterm: – Monday 23 rd February, 9-18, – Break:1:30-2:30 (lecture) • Midterm – Use a PENCIL (bring your own). – Bring the student card.
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4 © Copyright 2008 Mihai Albu & Alan Wassyng
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5 One-dimensional arrays • All the elements are connected via an index of the array – Easy to access and modify – Easy to use in a loop – Easy to sort, search, display • As a row…
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6 Two-dimensional arrays int [,] myArray = new int [rows,columns]; char [,] myChars = new char [rows, columns]; => Just like matrices
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7 Declaration • int [,] yourMarks = new int [3,3]; • First index is the row • Second index is the column 0 0 0 2 0 0 2 0 0 1 0 0 0 1 0 yourMarks
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8 Usage • yourMarks[1,2] = 7; 0 0 0 2 0 0 2 0 0 1 0 0 0 1 0 yourMarks
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9 Usage • yourMarks[1,2] = 7; 0 0 0 2 7 0 2 0 0 1 0 0 0 1 0 yourMarks
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10 Usage • yourMarks[1,1] = 1; 0 0 0 2 7 0 2 1 0 1 0 0 0 1 0 yourMarks
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Lecture6 - Engineering Computation ENG 1D04 ENG 1D04...

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