convert string to equation
25 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi guys I am building an application using the app designer. However, I have ran into issue because I want the user to feed his equation into the app. However, the edited field can either be numaric or text so if fore example user want to input an equation (5*x^2) how would that be done? I have tried using string field and use str2double and str2num but that didn't work any thoughts on that?
Réponses (1)
per isakson
le 31 Mar 2021
Modifié(e) : per isakson
le 31 Mar 2021
>> x=3;
>> v = eval('(5*x^2)')
v =
45
>>
Create an anonymous function
>> foo = eval(['@(x)','(5*x^2)'])
foo =
function_handle with value:
@(x)(5*x^2)
>> foo(2)
ans =
20
>>
Voir également
Catégories
En savoir plus sur Argument Definitions dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!