Term
| Ch.8 All data files should be treated as a sequential series of characters. |
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Definition
| True. Although the actual storage technique on a hard drive may have blocks of characters distributed randomly on its surface, the software that reads and writes the disk serializes the characters. |
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Term
| Ch.8 When you save a workspace, you are actually saving the scripts that generate the data in the workspace. |
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Definition
| False. You save the variable names and their current values, not the programs that generated the data. |
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Term
| Ch.8 MATLAB reads strings from tab- or comma-delimited files by recognizing the double quotes that delimit strings. |
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Definition
| False. While some apps permit delimited strings to be embedded in comma- or tab-delimited files, MATLAB's readers read only numerical data into arrays. |
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Term
| Ch.8 If you use fopen(...) to open an existing file and write to it, the original data in the file will be overwritten. |
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Definition
| False. You can use the qualifier 'a' to indicate that you will append to the end of an existing file. |
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Term
| Ch.8 The function fgets(fh) does not always return a string. |
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Definition
| True. If you read past the end of a file, a numerical -1 is returned. |
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Term
| Ch.8 In general, data files contain text that represents the _______ of the data and control characters that specify the ________ of the data. |
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Definition
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Term
| Ch.8 The MATLAB xlsread(...) function returns three results: the _______ in a(n) _______, the ________ in a(n)________, and _______ in a _______. |
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Definition
| numerical values; double array; text data; cell array; both string and numerical data; cell array |
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Term
| Ch.8 When using dlmread(...) to populate a(n) _________, any unassigned values are _______. |
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Definition
| numerical array; filled with zero |
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Term
| Ch.8 When using fopen(...), the consequence of failure to open the file is ________. |
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Definition
| system dependent (for ex., in the standard version on a PC, this is indicated by returning a file handle of -1) |
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Term
| Ch11. The plot(...) function needs only one parameter to function correctly. |
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Definition
| True. If the x vector is ommited, 1:N is assumed for the independent parameter, and if the str is omitted, a solid blue line used. |
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Term
| Ch11. Plot enhancement functions may be called before or after the function that plots the data. |
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Definition
| False. To apply to a specific data plot, the enhancement functions must follow the plotting function. |
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Term
| Ch11. You must provide plots for all the specified sub-plot areas |
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Definition
| False. Any area not provided with a plot remains blank. |
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Term
| Ch11. meshgrid(...) accepts vectors of length m and n that bound the edges of the plaid and produces two array sized m x n giving the complete plaid. |
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Definition
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Term
| Ch11. To construct a parametric surface, both independent parameters must be angles. |
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Definition
| False. Bodies of rotation, for example, use one of the axis directions as an independent parameter. |
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Term
| Ch11. When rotating a function about the y-axis, the variables along the x and y axes are computed from a classic polar-to-Cartesian conversion. |
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Definition
| False. It is the x and z axes (those axes not the axis of rotation). |
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Term
| Ch11. To compute a body of rotation, the curve must be a continuous, differentiable function. |
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Definition
| False. The curve does not need to be continuous. |
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Term
| Ch11. Bodies of rotation are confined rotating about the x, y, or z axes. |
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Definition
| False. You can rotate the data to align an arbitrary axis with the x-axis, perform the body of rotation there, and invert the rotation. |
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Term
| Ch11. Each time figure is called, a(n) _________ is made available, with figure number ________. |
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Definition
| new figure; the next higher |
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Term
| Ch11. To prepare for plotting, put _____ or ______ at the beginning of your script. |
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Definition
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Term
| Ch11. Parametric plots allow the variables on each axis to be _______ on a(n) _______,________ variable. |
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Definition
| dependent; separate; independent |
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Term
| Ch11. The simplest surface plots are obtained by defining a(n) _________ value for each point on _________. |
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Definition
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Term
| Ch11. We construct a sphere by wrapping a(n) _______ with two ________ as the independent variables around the sphere. |
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Definition
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Term
| Ch11. Bodies of rotation are created by rotating a(n) _________ about a(n) _______. |
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Definition
| linear curve; specified axis |
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Term
| Ch12. All MATLAB classes exhibit some form of behavioral abstraction. |
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Definition
| True. Even the most primitive data members encapsulate their data and control the operations that can be performed on the data. |
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Term
| Ch12. Matrix multiplication requires that the inner dimensions match. |
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Definition
| False. It also works if one or both of the matrices are scalar. |
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Term
| Ch12. The results of A * B and B * A are identical. |
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Definition
| True, only if one is a scalar; otherwise, False. If A and B are not square, one will fail; even if they are square, they will have different answers. |
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Term
| Ch12. Both A * A^-1 and A^-1 * A return the identity matrix. |
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Definition
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Term
| Ch12. Multiplying inv(A) * B is logically equivalent to B / A. |
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Definition
| False. It is equivalent to back dividing: A \ B. |
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Term
| Ch12. All sets of simultaneous linear equations can be solved by matrix inversion. |
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Definition
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Term
| Ch12. Behavioral abstraction combines ________ abstraction and ________ abstraction. |
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Definition
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Term
| Ch12. The result of a matrix multiplication is a new matrix with the ______ count of the first matrix and the ______ count of the second. |
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Definition
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Term
| Ch12. To rotate a graphic object in the x-y plane about some point, P, other than the origin, you first _______, then _______, and then ________. |
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Definition
| translate the object; perform the rotation; translate the rotated object back to P |
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Term
| Ch12. To be soluble, simultaneous linear equations must be expressed as ________ equations involving ________ variables, xi ,and _______ values. |
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Definition
| N independent; N unknown; N * (N + 1) constant |
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