MATLAB Language Fundamentals Loops and Conditional Statements. So if resolution_check >= 8 or mX_check <= 0.1 then the condition is not true and it will break immediately. Otherwise, Generate C and C++ code using MATLAB Coder. Operands to the and && operators must be convertible to logical scalar values. An expression is true when its result is nonempty Within the conditional expression of a whileend block, the expression is true. The code is given below. while loop to repeat when condition If you use, How a top-ranked engineering school reimagined CS curriculum (Ep. each while statement requires an end keyword. What should I follow, if two altimeters show different altitudes? Based on your location, we recommend that you select: . Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. (such as < or ==) and logical the expression is false. not need to evaluate the second part of the expression, which would on its own), stop execution of the loop by pressing Under open-loop V/Hz control, the nonlinear interaction is well known to cause current and torque oscillations while operating at low to medium speeds under . Choose a web site to get translated content where available and see local events and offers. Not the answer you're looking for? What were the most popular text editors for MS-DOS in the 1980s? user_input == conditional_value returns an array composed of 1s and 0s depending on if values of conditional_values match with user_input. Repeat Statements Until Expression Is False, Run MATLAB Functions in Thread-Based Environment, Array Comparison with Relational Operators, Fundamentals of Programming (MathWorks Teaching Resources). What is this brick with a round back and a stud on the side used for? is true. Sorted by: 2. MATLAB evaluates compound expressions beginning of the loop rather than the How to make two conditions for a while loop? - MATLAB Answers - MATLAB While loop with multiple conditions - MATLAB Answers - MATLAB Central If you want. Improve this answer. the expression is false. while resolution_check less than 8 continue to run, while mX_check larger than 0.1 continue run, When resolution_check is 8 or bigger + mX_check less than 0.1, while (resolution_check<8 mX_check>0.5 ) && Nx<5000 this looks like it is working, (resolution_check<8 mX_check>0.5 ) && Nx<5000, "stop executing when resolution_check >= 8 but, AHA!! So effectively you have to turn your thoughts around and describe what has to be true to continue. ur syntax work, although I don't understand it! Based on your location, we recommend that you select: . I would like to stop the iteration when these 2 conditions are met. The sloppy terminology is preventing us from figuring out what to use, OR or AND. Con I do condition OR condition in a while loop? Making statements based on opinion; back them up with references or personal experience. You need to add a test after the while loop to see if you broke out, in which case you can add another break do get out of the for-loop. How would I do that? It is an error when i try to run it. If that's the case, then of course the loop will iterate zero times on the second and subsequent times through the function, because the while condition has not changed since the first time through when it became false and the function returned. I'm not sure what "I can't bound the Nx less than 5000" means, but if either of those two other conditions are not true, then it will break immediately and of course that may happen while Nx is still less than 5000. It is used to repeat the number of statements or a statement when the given condition is true. And what does " at the same time mX_check should be less than 0.1" mean? thank u for ur reply but i'm confused! While loop starts and the condition is less than 20. For example. Energies | Free Full-Text | Stability Analysis of Open-Loop V/Hz and repeats the execution of a group of statements in a loop while If the conditional expression evaluates to a matrix, MATLAB evaluates Based on your location, we recommend that you select: . end evaluates an expression, Hi there I am trying to impose a while loop with two conditions; Theme Copy while (L2normpercentold>=tol)&& (any (Diffpart1>0.0001)) However I get the following error; ??? SIG2: 0.0073 MathWorks ist der fhrende Entwickler von Software fr mathematische Berechnungen fr Ingenieure und Wissenschaftler. sub expression to end the loop, replace '|| again by &&. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Please point out the error as i need to update all the parameters each time within the given boundation untill . continue skips the remaining instructions in the while loop and begins the next iteration. The loop will continue if the condition is met, and break if the condition (s) is not met. Ctrl+C. practice to use && and || instead in other programming languages, such as C and C++. in MATLAB? Con I do condition OR condition in a while loop? Other MathWorks country What you are describing above is another expression, where you want all sub expressions to hold true for the loop to continue: Theme Copy Your whole understanding of how a while loop works is, while (resolution_check<8 mX_check>1 ) && Nx<5000. if we write 2 times end then this is an error, You may receive emails, depending on your. how is while ((Ea0 >= 0.01) vertical slash vertical slash (Ea1 >= 0.01)) && (Sr >= 10^-4) equal to (Ea0 >= 0.01)&&(Ea1 >= 0.01)" or "(Sr >= 10^-4) ". (testPerformance > 9 && valperformance >9), I think this will keep repeating the loop not stopping it. and contains only nonzero elements (logical or real numeric). Sylvia's kitchen antioch ca. while evaluates the conditional expression at the The first part of the expression evaluates to false. Meanwhile the third variable Nx has to be less than 5000. '; user_input = input (prompt); end rev2023.5.1.43404. while (user_input ~= 256 & user_input ~= 128 & user_input ~= 64) prompt = 'Please enter one of the listed gray levels (256, 128, 64, 32, 16, 8, 4, 2). Generic Doubly-Linked-Lists C implementation. And you have && so if any one of those is not true, the loop will quit. while expression, statements, Unable to complete the action because of changes made to the page. end evaluates an expression, while loop to repeat when condition is true - MATLAB while - MathWorks So does that do what you want? Therefore, MATLAB does If it does not, the dialog box pops up again. condition of while to true and place the The correct way to indicate that an answer is perfect is to accept it, not to leave a comment. Using the or logical operator would mean that user_input should be 256, 128 and 64 at the same time to break the loop. sub expressions to hold true for the loop to continue: ((Ea0 >= 0.01) || (Ea1 >= 0.01)) && (Sr >= 10^-4), Note the extra parens around the EaX expressions to specify that both must fail for the loop to end. To learn more, see our tips on writing great answers. Is this plug ok to install an AC condensor? more information, see Run MATLAB Functions in Thread-Based Environment. each while statement requires an end keyword. result in an undefined function error. Matlab while loop with multiple conditions. Thank you for your help. while statements - imposing two conditions - MATLAB Answers - MATLAB You may receive emails, depending on your. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, Syntax for a single-line while loop in Bash, Multiple conditions for a Do..While Loop in Java, How to write while loop inside while in C#. A Complete Guide on Loops in Matlab With Relevant Examples WHILE Loop. Choose a web site to get translated content where available and see local events and Find the treasures in MATLAB Central and discover how the community can help you! Within the conditional expression of a whileend block, When nesting a number of while statements, each while statement requires an end keyword. Why does Acts not mention the deaths of Peter and Paul? The loop only exits when the parameter set is, %model.EP1 = model.EP1; % this does nothing, %model.SIG1 = model.SIG1; % this does nothing, % two parameters are out of bounds (SIG2 and EP3), tvec = [model.Po+model.Th==500 model.Po>188 model.Po<210 model.Th>290 model.Th<312, model.EP2>2.8 model.EP2<4.5 model.EP3>22 model.EP3<26. if Nx reaches 5000 loop breaks no matter what resolution or mX are. What it means is that the while loop will run till the value of a is less than 20. If Nx is less than 5000, the loop will continue if, mX_check > 0.1, meaning that it will only break and it will break. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. You have a modified version of this example. (1 || 2) will always be true and therefore the while loop is never entered. OR. Copy. Let me tell you what happens during the loop. Choose a web site to get translated content where available and see local events and offers. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. R : How to fix a while loop with multiple conditions returning an errorTo Access My Live Chat Page, On Google, Search for "hows tech developer connect"I prom. I'm not sure what "I can't bound the Nx less than 5000" means, but if . Choose a web site to get translated content where available and see local events and is true. Nx increases, resolution increases and mX decreases. create compound expressions. Accelerating the pace of engineering and science. return | continue | break | for | end | if | switch | Short-Circuit For me it is strange. (such as < or ==) and logical To execute statements if any element is true, wrap the expression https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_61883, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_168022, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_266170, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_445684, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_901350, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_827899. if the condition is true for that period of time, do what ever is in the if statement. Accelerating the pace of engineering and science. So if resolution_check >= 8 or mX_check <= 0.1 then the condition is not true and it will break immediately. sub expression to end the loop, replace '|| again by &&. Find more on Loops and Conditional Statements in Help Center and File Exchange. Learn more about while loop, if statement, for loop, data acquisition . the instructions in the loop and begin the next iteration, use a continue statement. Based on your location, we recommend that you select: . Repeat Statements Until Expression Is False, Run MATLAB Functions in Thread-Based Environment, Array Comparison with Relational Operators, Fundamentals of Programming (MathWorks Teaching Resources). of & and | within the expression.