These is the basic MATLAB Interview Questions which is asked in an interview. Below is the MATLAB commands are as follows:
Session Management Commands
- help Searches for a help topic.
- whos Lists current variables (long display).
- who Lists current variables.
- quit Stops MATLAB.
- global Declares variables to be global.
- clear Removes variables from memory.
- clc Clears command window.
- look for Searches help entries for a keyword.
- exist Checks for the existence of a file or variable.
A command for the Systems
- path Displays search path.
- pwd Displays the current directory.
- delete Deletes a file.
- diary Switches on/off diary file recording.
- dir Lists all files in the current directory.
- cd Changes current directory.
- date Displays the current date.
- delete Deletes a file.
- type Displays contents of a file.
- what Lists all MATLAB files in the current directory.
- wklread Reads .wk1 spreadsheet file.
Commands for Input and Output
- format Controls screen-display format.
- fprintf Performs formatted writes to screen or file.
- input Displays prompts and waits for input.
- disp Displays contents of an array or string.
- fscanf Read formatted data from a file.
Plotting Commands
- axes Creates axes objects.
- close Closes the current plot.
- close all Closes all plots.
- polar Creates polar plot.
- semilogx Creates semilog plot. (logarithmic abscissa).
- semilogy Creates semilog plot. (logarithmic ordinate).
- stairs Create stairs plot.
- stem Creates stem plot.
- axis Sets axis limits.
- fplot Intelligent plotting of functions.
- grid Displays gridlines.
- plot Generates xy plot.
- print Prints plot or saves the plot to a file.
- title Puts text at top of the plot.
- xlabel Adds text label to the x-axis.
- ylabel Adds text label to the y-axis.
- refresh Redraws current figure window.
- set Specifies properties of objects such as axes.
- subplot Creates plots in subwindows.
- text Places string in a figure.
- bar Creates bar chart.
- log-log Creates log-log plot.
Array, Matrix, and Vector Commands
- reshape Changes size.
- size Computes array size.
- sort Sorts each column.
- sum Sums in each column.
- eye Creates an identity matrix.
- ones Create an array of ones.
- zeros Create an array of zeros.
- cat Concatenates arrays.
- find Finds indices of nonzero elements.
- length Computes a number of elements.
- linspace Creates regularly spaced vector.
- logspace Creates logarithmically spaced vector.
- max Returns largest element.
- min Returns the smallest element.
- prod Product of each column.