x = 42;ifexist('myfunction.m','file') && (myfunction(x) >= pi) disp('Expressions are true')end The first part of the expression evaluates to false. Therefore, MATLAB does not need to evaluate the second part of the expression, which would result in an undefined function error. ...
Syntax if expression statements elseif expression statements else statements end Description if expression, statements, end evaluates an expression, and executes a group of statements when the expression is true. An expression is true when its result is nonempty and contains only nonzero elements (log...
If the number of times of the loop is uncertain before entering the loop, it is necessary to decide when to exit according to the execution result of the code in the loop. At this time, a while loop can be used. 基本语法如下: The basic syntax is as follows: while 条件 循环体语句 e...
Syntax if expression statements elseif expression statements else statements end Description if expression, statements, end evaluates an expression, and executes a group of statements when the expression is true. An expression is true when its result is nonempty and contains only nonzero elements (log...
Regardless of the programming language, there are judgment statements, and whether they are in C/C++/Python, they have the same name, called if statements, but there are some differences in the syntax structure. In Matlab, a space is added after the if condition. If the condition is satisfi...
MATLAB Language Syntax if, elseif, else Execute statements if condition is true switch, case, otherwise Execute one of several groups of statements for for loop to repeat specified number of times while while loop to repeat when condition is true try, catch Execute statements and catch resulting...
do % Not valid MATLAB syntaxstatementswhileexpression To mimic the behavior of ado...whileloop, set the initial condition ofwhiletotrueand place the conditional expression inside the loop. For example, implement thedo...whileloop above by using a MATLABwhileloop. ...
% PROBLEM.solver. Use this syntax to solve at the command line a problem % exported from OPTIMTOOL. The structure PROBLEM must have all the fields. % % [X,FVAL] = FMINCON(FUN,X0,...) returns the value of the objective % function FUN at the solution X. ...
Syntax C = cond(A) C = cond(A,p)Description C = cond(A) returns the 2-norm condition number for inversion, equal to the ratio of the largest singular value of A to the smallest. example C = cond(A,p) returns the p-norm condition number, where p can be 1, 2, Inf, or 'fro...
Syntax x = fzero(fun,x0) x = fzero(fun,x0,options) x = fzero(problem) [x,fval,exitflag,output] = fzero(___) Description x= fzero(fun,x0)tries to find a pointxwherefun(x) = 0. This solution is wherefun(x)changes sign—fzerocannot find a root of a function such asx^...