How to solve this equation?
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Sara Boznik
am 29 Aug. 2020
Bearbeitet: Mario Malic
am 4 Sep. 2020
Hi everyone,
I want to solve this equation in Matlab. Until now I have the following code:
a=18
b=60
c=76.7
syms x
solx=solve('cos(x).*(a.*sin(x)+b)=c','x')
I get next error: Check for missing argument or incorrect argument data type in call to function 'solve'.
Error in Untitled (line 8)
solx=solve('cos(x).*(a.*sin(x)+b)=c','x')
I dont know what it is wrong, can anybody help me?
Any help is appriciated.
4 Kommentare
Kitty Visser
am 4 Sep. 2020
Bearbeitet: Kitty Visser
am 4 Sep. 2020
i have also this error
with this function
[V1,V2,V3]=solve('(V1-V2)/R1 = Is + 2*(V3-V2)/R3','(V2 - V1)/R1 + V2/R2 + (V2-V3)/R3 = 0','(V3-V2)/R3 + V3/R4 + 2*(V3-V2)/R3=0','V1','V2','V3')
Mario Malic
am 4 Sep. 2020
Bearbeitet: Mario Malic
am 4 Sep. 2020
You're missing double equals sign in your equations.
Akzeptierte Antwort
Ali Muhammad Hassaan
am 29 Aug. 2020
a=18
b=60
c=76.7
syms x
eqn = cos(x).*(a.*sin(x)+b) == c
solx=solve(eqn)
2 Kommentare
Vladimir Sovkov
am 29 Aug. 2020
The sintax is correct here but it is of no help to find the solution, because there is no real-type one, and "solve" refuses working with the complex type. To find the solution you should reformulate the problem as a system of two real-type equations for the real and imaginary parts being two unknown variables.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Symbolic Math Toolbox finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!