EGR 1400 Exam 3 – Questions With Appropriate
Solutions
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Terms in this set (136)
Table A rectangular array of data
script file a sequence of MATLAB commands also called
program (also called M-files)
- Must begin with a letter Rules about variable names:
- Can be up to 63 characters long (31
in MATLAB 6)
- Can contain letters, digits, and the
underscore characters - MATLAB is
case sensitive
- No space is allowed
- No use of built-in functions
Array a fundamental form that MATLAB uses to store and
manipulate data
An array a list of numbers arranged in rows and/or columns
characters (strings) In addition to arrays of numbers, arrays in MATLAB
can be made of a list of
True Tables can be usually converted to arrays
True In MATLAB a vector is created by assigning the
elements of the vector to a variable
,- By known list of numbers (row, Creating a vector can be done in several ways:
column) or functions
- By specifying the first, the spacing,
and the last term (with or without
brackets, forward and backward)
- By specifying the first and last terms,
and the number of terms (linspace
command)
False The rule in creating a matrix is that some of the rows
must have the same number of elements
- By known list of numbers (row, Creating a matrix can be done in several ways:
column) or functions
- By specifying the first, the spacing,
and the last term
- By specifying the first and last terms,
and the number of terms (linspace
command)
False Not all variables in MATLAB are arrays
• Vector:v(:);v(m:n) Using a colon to address a range of elements in
• vector or matrix
Matrix:A(:,n);A(n,:);A(:,m:n);A(m:n,:);A(m:
n,p:q)
True Adding an element which is beyond the size of a
matrix, similar as in vector case, will result in added
zeros
length(A), size(A), reshape(A, m, n), Built-in functions for handling arrays
diag(v), diag(A)
String an array of characters
True Strings use single quotes, and can include letters,
digits, other symbols and space in MATLAB
, - Output commands to display text Use of strings in MATLAB:
messages
- Formatting commands of plots
- Input arguments of some functions
True We can modify a string, by accessing one character
or a set of characters within the original string
False Strings can't be stored in a matrix
True Strings can also be stored in a matrix
Info = char('Student Name:','John Built-infunction char:
Smith','Grade:','A')
False A string made up of the digits is the same as the
number itself
True A string made up of the digits is different than the
number itself
field Each column of the table, called a _____ contains the
same type of information
record Each row, called a _____, contains all the information
about one entry in the table
true Databases contain one or more related tables
Access, Oracle, SQL Server Examples of DBMS
Solutions
Save
Terms in this set (136)
Table A rectangular array of data
script file a sequence of MATLAB commands also called
program (also called M-files)
- Must begin with a letter Rules about variable names:
- Can be up to 63 characters long (31
in MATLAB 6)
- Can contain letters, digits, and the
underscore characters - MATLAB is
case sensitive
- No space is allowed
- No use of built-in functions
Array a fundamental form that MATLAB uses to store and
manipulate data
An array a list of numbers arranged in rows and/or columns
characters (strings) In addition to arrays of numbers, arrays in MATLAB
can be made of a list of
True Tables can be usually converted to arrays
True In MATLAB a vector is created by assigning the
elements of the vector to a variable
,- By known list of numbers (row, Creating a vector can be done in several ways:
column) or functions
- By specifying the first, the spacing,
and the last term (with or without
brackets, forward and backward)
- By specifying the first and last terms,
and the number of terms (linspace
command)
False The rule in creating a matrix is that some of the rows
must have the same number of elements
- By known list of numbers (row, Creating a matrix can be done in several ways:
column) or functions
- By specifying the first, the spacing,
and the last term
- By specifying the first and last terms,
and the number of terms (linspace
command)
False Not all variables in MATLAB are arrays
• Vector:v(:);v(m:n) Using a colon to address a range of elements in
• vector or matrix
Matrix:A(:,n);A(n,:);A(:,m:n);A(m:n,:);A(m:
n,p:q)
True Adding an element which is beyond the size of a
matrix, similar as in vector case, will result in added
zeros
length(A), size(A), reshape(A, m, n), Built-in functions for handling arrays
diag(v), diag(A)
String an array of characters
True Strings use single quotes, and can include letters,
digits, other symbols and space in MATLAB
, - Output commands to display text Use of strings in MATLAB:
messages
- Formatting commands of plots
- Input arguments of some functions
True We can modify a string, by accessing one character
or a set of characters within the original string
False Strings can't be stored in a matrix
True Strings can also be stored in a matrix
Info = char('Student Name:','John Built-infunction char:
Smith','Grade:','A')
False A string made up of the digits is the same as the
number itself
True A string made up of the digits is different than the
number itself
field Each column of the table, called a _____ contains the
same type of information
record Each row, called a _____, contains all the information
about one entry in the table
true Databases contain one or more related tables
Access, Oracle, SQL Server Examples of DBMS
