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looping statementsconsider the problem of computing the area of a circle with radius of 03 centimeters-a matlab program certainly is not required to
is functions in matlabthere are many functions which are built into matlab which test whether or not something is true these function names start
common form of the switch statementthe common form of the switch statement is as shown below switch switchexpression case caseexp1
the switch statementa switch statement can frequently used in place of a nested if-else or an if statement with numerous else if clauses the switch
use of nested if-else statementsby using the nested if-else to select from among the three possibilities not all the conditions should be tested in
nested if-else statementsthe if-else statement is used to select between the two statements in order to select from more than two statements the
the if-else statementthe if statement selects whether an action is executed or not selecting between the two actions or selecting from numerous
representing logical true and falseit has been stated that expressions which are theoretically true really have the integer value of 1 and
mathematical operationfor numerical operands the use of such operators is clear-cut for illustration 3 lt 5 means 3less than 5 that is conceptually a
illustrations of calling the functionhere are illustrations of calling the functiongtgt cylcost3273450ans 6615000gtgt fprintfthe cost would be 2fn
calling a functionhere is an illustration of the call to this function in which value returned is stored in the default variable ansgtgt calcarea4ans
define a functionthe radius of a circle is passed to the function to input argument rad the function computes the area of this circle and stores
function definitionsthere are various ways to organize the scripts and functions but for now every function which we write will be stored in a
call to length functionthe call to length function consists of the name of the function followed by an argument in the parentheses this function
illustration of a built-in functionthe length function is an illustration of a built-in function which computes a single value it returns the length
user-defined functions which return a single valuewe have seen the use of many functions in the matlab we have used many built-in functions like fix
reading from a filea file has been once created it can be read into a matrix variable when the file is a data file the load function will read from
appending data to a data filea text file once exists the data can be appended to it the format is similar as formerly with the addition of the
writing data to a filethe save function can be used to write a data from the matrix to the data file or to append a data file the format is as shown
introduction to file inputoutput load and savein most cases the input to a script will come from a data file which has been generated by the other
grid functiongrid shows grid lines on the graph called by itself it is a toggle which turns the grid lines on amp off alternatively the commands grid
hold and legend functionhold is a toggle which freezes the present graph in the figure window so that the new plots will be superimposed on the
simple related plot functionsthe other functions which are useful in customizing plots are the figure clf hold leg-end and grid the short description
customizing a plot line types color marker typesplots can be completed in the command window if they are really simple though at many times it is
scripts to produce and customize the simple plotsthe matlab has many graphing capabilities in most cases customizing plots are desired and this is