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What is an array?
- *The fundamental unit of data in any Matlab program.
- *A collection of data values organized into rows and columns.
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What is a Vector?
An array with only one dimension.
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An array with two or more dimensions is a _______.
Matrix
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How is the size of the array determined?
It is specified by the number of rows and the number of columns in the array, (rows, columns).
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What is a variable?
A region of memory containing an array, which is known by a user-specified name.
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The simplest way to initialize a variable is to assign it one or more values and is written as
var = expression;
is known as an_______.
Assignment Statement
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All elements of an array are listed in _____ order.
Row
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This expression creates a 1 x 1 array containing the value 3.4
[3.4]
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This expression creates a 1 x 3 array containing the row vector [1 2 3].
[1.0 2.0 3.0]
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This expression creates a 3 x 1 array containing the column vector
[1
2
3]
[1.0; 2.0; 3.0]
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This expression creates a 2 x 3 array containing the matrix
[1 2 3
4 5 6]
[1, 2, 3; 4, 5, 6]
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This expression creates a 2 x 3 array containing the matrix
[1 2 3
4 5 6]
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This expression creates an empty array, which contains no rows and no columns.
[ ]
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Specifies a whole series of values by specifying the first value in the series, the stepping increment, and the last value in the series.
Colon Operator
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The general form of a colon operator is _________.
first:incr:last
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The first value is?
The first value in the series.
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The incr value is?
The stepping increment or increasing increment
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The last value is?
The value in that it stops at.
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Generates an n x n matrix of zeroes.
zeros(n)
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Generates an m x n matrix of zeros.
zeros(m,n)
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Generates a matrix of zeros of the same size as arr.
zeros(size(arr))
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Generates an n x n matrix of ones.
ones(n)
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Generates an m x n matrix of ones.
ones(m,n)
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Generates a matrix of ones of the same size as arr.
ones(size(arr))
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Generates an n x n identity matrix.
eye(n)
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Generates an m x n identity matrix.
eye(m,n)
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Returns the length of a vector, or the longest dimension of a 2-D array.
length(arr)
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Returns two values specifying the number of rows and columns in arr.
size(arr)
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_________ contains all on-diagonal elements are one, while all off diagnol elements are zero.
Identity Matrix
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