1. Explain What is Matlab?
MATLAB is a high performance language for technical computing. it integrates computation, visualization, and programming in an easy-to-use environment where problems and solutions are expressed in familiar mathematical notation. Typical uses include:
2. What are the Matlab system parts?
the MATLAB system consists of five main parts:
3. What is the Matlab language?
This is a high level matrix/array language with control flow statements, functions, data structures,input/output, and object oriented programming features. it allows both “programming in the small” to rapidly create quick and dirty throw away programs, and “programming in the large” to create complete large and complex application programs.
4. What is the Matlab Working Environment?
This is the set of tools and facilities that you work with as the MATLAB user or programmer. it includes facilities for managing the variables in your work space and importing and exporting data. it also includes tools for developing, managing, debugging, and profiling Mfiles, MATLAB’s applications.
5. Define handle graphics in Matlab?
This is the MATLAB graphics system. it includes high level commands for two dimensional and three dimensional data visualization, image processing, animation, and presentation graphics. it also includes low level commands that allow you to fully customize the appearance of graphics as well as to build complete graphical User interfaces on your MATLAB applications.
6. What is the Matlab Mathematical Function Library?
This is a vast collection of computational algorithms ranging from elementary functions like sum, sine, cosine, and complex arithmetic, to more sophisticated functions like matrix inverse, matrix eigenvalues, Bessel functions, and fast Fourier transforms.
7. What is the Matlab application program interface(api)?
This is a library that allows you to write C and Fortran programs that interact with MATLAB. it include facilities for calling routines from MATLAB (dynamic linking), calling MATLAB as a computational engine, and for reading and writing MATfiles
8. How to add noise to an image in Matlab?
the function noise.m, now installed on ashland too, adds Gaussian, uniform, salt and pepper,additive or multiplicative noise to an image.
9. What Can We Use Matlab For?
10. Vectorization What is that in Matlab?how to do it?
Thinking is terms of full matrices/vectors and also some related functions for that * Use of filter(), which works beautifully for some time series models
11. On What Machines Matlab should Be Run?
We will run it from sthelens, and only if sthelens is down, from cher, orsay or tiree. it works on other machines too, but some of the other machines have older versions of the Os and core dump upon exiting from matlab. some other local machines with new setups work fine. Try your local machine. Matlab is blocked from running on the servers
12. What is latex in Matlab?
Matlab already handles naturally simple LaTeX encodings that allow introducing Greek lettters or modifying the font size and appearance in plots.
13. Can we run Matlab with out graphics?
sometimes you may want to run scripts which contain plotting commands without displaying the plots and without going into the script to comment out the commands.
an example: if you’re working from home and it’s too slow to run graphics over the network.You can play a simple UNIX trick:
%setenv DisPLAY /dev/null % matlab
14. How to correctly apply the graphics patches in Matlab?
Open a LOCAL MACHinE window and type: xhost +ashland # Add the following code sequence just before the plot command that was giving you problems: figure? set(gcf,’renderer’,’zbuffer’)? [s,w] = unix(‘echo $DisPLAY’)? set(gcf,’XDisplay’,w)?
15. How to call Matlab in batch mode?
This can be done from the command line or from a makefile. You need a script (filename.m). Just type at the command line, or include in the makefile: matlab
16. Define about stress analysis in Matlab?
People working on these areas as a aerospace engineers should have familiarity and exposure to NAsTRan and MATLAB with knowledge on space environment and modeling of flexible dynamics.these aerospace engineers will be responsible to conduct stress analysis on metallic and composite structures. NAsTRan, IDEAD, Oracle and PATRan proficiency level is required. their duties also include on aircraft which are metallic and composite structures. This includes and understanding of control surface stiffness and loop calculations, finite element modeling (FEM),fatigue testing requirement and analysis.
17. Do you know what are the four basic functions to solve ordinary differential equations?
the four basic functions that MatLab has to solve ODE’s are
18. What are Xmath features?
19. Do you know what is simulink?
simulink is an addon product to MatLab, it provides an interactive, simulating, graphical environment for modeling and analyzing of dynamic systems.
20. What are the operators that Matlab allows?
Matlab allows following Operators
21. Do you know what are the types of loops does Matlab provides?
Matlab provides loops like
22. Do you know Matlab consist of what?
MatLab consists of five main parts
23. What is xmath?
Xmath is an interactive scripting and graphics environment for Xwindow workstations.
24. What is Image arithmetic functions in Matlab?
Following is the list of image arithmetic functions and their usage.
25. Tell We can Matlab run without graphics?
At times scripts need to run without displaying the plots.
26. Do you know how to correctly apply the graphics Patches in Matlab?
Following is the sequence of commands to apply graphic patches in MATLAB.
Open the LOCAL MACHinE window.
Type the command xhost + ashland.
Add the following code sequence before the plot command.
Figure;
set(gcf,’renderer’,’zbuffer’);
[s,w] = unix(‘echo $DisPLAY’);
set(gcf, ‘XDisplay’,w);
27. Do you know what is latex in Matlab?
MATLAB allows Greek letters.
28. suppose if you Know then tell me how to call Matlab in batch mode?
Batch mode execution of MATLAB can be done from command line or from makefile.
29. What is Memory management functions in Matlab?
Below is the list of memory management functions.
30. Do you know how to pre allocate a non double matrix?
Preallocating a block of memory for holding a non double matrix is memory efficient.
31. What are the basic plots and graphs of Matlab?
Following table describes basic plots and graphs.
32. What are 3d visualization elements in Matlab?
3D visualization elements allow MATLAB to deal with 3D graphics.
33. What is handle graphics in Matlab?
Handle graphics is a subsystem of MATLAB that handles graphics.
34. What is stress analysis in Matlab?
MATLAB is used in aerospace engineering, space environment.
35. Explain Matlab mathematical function library?
MATLAB mathematical functions include computational algorithms.
36. What is Matlab working environment?
MATLAB working environment has various tools to work with MATLAB.
37. Explain about Matlab language?
MATLAB language is a high-level matrix language.
38. Do You Know about Matlab system parts?
Following are the 5 main parts of MATLAB.
39. What is pseudo random binary sequence and numeric precision in Matlab?
pseudo random binary sequence : A form of generating an M-file in the new Frequency Domain system Identification toolbox, for a specified set of lengths (2^2-1 to 2^30-1) is called pseudo random binary sequence. it is also known as mlbs (for Maximum Length Binary sequence).
numeric precision : Numeric quantities which are represented as double precision floating point numbers is called numeric precision. On most computers, such numbers have 53 significant binary bits, which is about 15 or 16 decimal digits.
40. Which graphic system is Used in Matlab? Explain it.