why clf is used in matlab?
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clf (MATLAB Functions) clf deletes from the current figure all graphics objects whose handles are not hidden (i.e., their HandleVisibility property is set to on ).
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For a given grammar, there can be more than one CNF. CNF produces the same language as generated by CFG. CNF is used as a preprocessing step for many algorithms for CFG like CYK(membership algo), bottom-up parsers etc. For generating string w of length 'n' requires '2n-1' production or steps in CNF.
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gcd (MATLAB Functions) G = gcd(A,B) returns an array containing the greatest common divisors of the corresponding elements of integer arrays A and B . By convention, gcd(0,0) returns a value of 0 ; all other inputs return positive integers for G .
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In Symbolic Math Toolbox™, symbolic variables are complex variables by default. For example, if you declare z as a symbolic variable using. syms z. then MATLAB® assumes that z is a complex variable. You can always check if a symbolic variable is assumed to be complex or real by using assumptions .
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MATLAB (matrix laboratory) is a multi-paradigm numerical computing environment and proprietary programming language developed by MathWorks. ... Although MATLAB is intended primarily for numerical computing, an optional toolbox uses the MuPAD symbolic engine allowing access to symbolic computing abilities.
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MATLAB function functions evaluate mathematical expressions over a range of values. They are called function functions because they are functions that accept a function handle (a pointer to a function) as an input. Each of these functions expects that your objective function has a specific number of input variables.
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Using Matlab for scientific purposes costs about the half. ... If X is smaller than the costs of MATLAB, MATLAB is expensive. If X is about 10 times the costs of MATLAB, MATLAB is getting very cheap, because its very powerful and well tested toolboxes allows a rapid prototyping, implementation and testing of the program.
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A = imread(filename, fmt ) reads a greyscale or color image from the file specified by the string filename , where the string fmt specifies the format of the file. If the file is not in the current directory or in a directory in the MATLAB path, specify the full pathname of the location on your system.
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Undefined function or variable 'x'. These errors usually indicate that MATLAB cannot find a particular variable or MATLAB program file in the current directory or on the search path. ... The search path to the function has been changed. The function is part of a toolbox that you do not have a license for.
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However MATLAB has indexing of arrays beginning from 1 instead of 0, which is the norm in almost every programming languages I have encountered so far. ... Hence it makes sense to have indexing from 0 in programming languages.
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MATLAB is a terrible programming language. ... The MATLAB language was originally designed for numerical computation (like PHP was designed to insert small dynamic elements into mostly static HTML pages), but then kept gaining features that turn it into something closer to a general purpose programming language.
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The plot function in Matlab is used to create a graphical representation of some data. It is often very easy to "see" a trend in data when plotted, and very difficult when just looking at the raw numbers.
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If you open a file with read access and the file is not in the current folder, then fopen searches along the MATLAB search path. If you open a file with write or append access and the file is not in the current folder, then fopen creates a file in the current directory.
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arbitrarily within practical limits. To distinguish between the constant-k and the derived type sections, subscript-k is used for the constant-k and subscript m is used for the derived type. Thus, ~k means the series arm of the constant-k filter, while ~m means the series arm of the derived filter.
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Go to function: s = sprintf(format,A,...) formats the data in matrix A (and in any additional matrix arguments) under control of the specified format string, and returns it in the MATLAB string variable s .
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Description. tf = isstrprop('str', ' category ') returns a logical array the same size as str containing logical 1 ( true ) where the elements of str belong to the specified category , and logical 0 ( false ) where they do not. The str input can be a character array, cell array, or any MATLAB numeric type.
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clc clears all input and output from the Command Window display, giving you a "clean screen". After using clc, you cannot use the scroll bar to see the history of functions, but you still can use the up arrow key, ↑, to recall statements from the command history. Reference link to read more about clc command.