VECTORIZE A MATRIX MATLAB PLUS

Row vector a = % perhaps ( Separate the same line with spaces or commas ）Ĭolumn vector % Semicolons can be used to separate the elements of each lineĤ. （ Separate with commas or spaces ）ĭisp ( )ĭisp (strcat ( 'c The values for ', num2str (c ) ) ) Use ’ ’ （ Single quotation marks ） or ' ' （ Double quotes ） Express str = ' character string ‘Ībout string functions (1) Merge two stringsĮg： strcat(' character string 1',' character string 2')ī. a = input ( ' Please enter the test score :' ) if a >= 85 disp ( ' Good grades ' ) elseif a >= 60 disp ( ' Pass the grade ' ) else disp ( ' Failing in grades ' )Įnd % Indicates that the input is complete, Otherwise, you will be asked to continue to inputĬan perform ordinary operations Add, subtract, multiply, divide, square root, exponential logarithm, Specifically, you can find the corresponding operator in the search box in the upper right corner. If The line does not need a colon, At the end of the sentence, be sure to end ending The middle sentence should be indented.

VECTORIZE A MATRIX MATLAB PLUS

to a variable, Here we give AĪ = input ( ' Please enter A：' ) % It makes a difference whether you add a semicolon or not, The plus sign will have an output Input : % Generally, we will input the number 、 vector 、 matrix 、 String, etc. Input and output （disp and input） Output ： a = 100ĭisp (b ) % notes ：disp Whether there is a semicolon after the function or not ！ These two are usually used together, be used for ” initialization “, Prevent previous results from affecting subsequent operations / New script fileĤ. clear clcĬlear - Delete all in the workspace VariableĮliminate All text in the command line window, Keep the screen clean.

(2) Semicolons can also be used for district branches. Multiline comment ： Choose, Shortcut key Ctrl+RĬancel multiline comment ： Choose, Shortcut key Ctrl+TĪdd a semicolon after the statement （）, Indicates that the running results are not displayed, Otherwise, there will be output, As in the above example. %% A single line of comments （ There are upper and lower horizontal lines – Can be used to partition ） Notes ：matlab Script files are used in, Suffix is. 4.8 Matrix and constant size judgment operation.Each element is multiplied or divided by a constant at the same time.Multiplication and division between the corresponding elements of two matrices with the same shape.Matrix addition, subtraction, multiplication and division.Take all the elements ( Spliced by column, The final output is a column vector ).

（4） Take all the elements of some specified rows （ The output is a matrix ）.

（3） Take all the elements of a specified column （ The output is a column vector ）.

（2） Take all the elements of a specified row （ The output is a line vector ）.

（1） Take an element of the specified row and column （ Output a value ）.

4.2 Extract the specified position elements in the matrix.

Vectorize a matrix matlab