How can I solve an equation that is logical?

2 vues (au cours des 30 derniers jours)
Lars Bosma
Lars Bosma le 22 Fév 2019
Réponse apportée : Prateek Rai le 19 Juin 2020
For my question I will take the following standard script:
syms x
eqn = sin(x) == 1
solx = solve(eqn,x)
Matlab sees eqn now as a 1x1 logical with a value of 0.
1.jpg
This should result in x = pi/2 however Matlab gives the following answer:
solx = x
Does anyone know how I can solve this?
  1 commentaire
madhan ravi
madhan ravi le 22 Fév 2019
use clear all and try again maybe?

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Prateek Rai
Prateek Rai le 19 Juin 2020
As per my understanding, you are trying to solve the equation sin(x)==1 and and having issue with variable "eqn"
You can try these two things:
(a) clear all
(b) declare eqn as sym:
syms eqn
You can refer to the following documentation for more details on “solve” function.
https://www.mathworks.com/help/symbolic/solve.html

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