solve n equation with n Variable

15 views (last 30 days)
Milad Javan
Milad Javan on 7 Nov 2011
Answered: Yagna V on 22 Jan 2020
I want to write a program that get n from user and solve n equation with n variable. How should I write solve command.
variable: syms V1 , V2 , ... , Vn
equations: eq=[eq1 eq2 ... eqn]
solve(eq(1:end),V1,V2,...,Vn)
My question is about writing n variable at solve command. Thanks.

Accepted Answer

Andrei Bobrov
Andrei Bobrov on 7 Nov 2011
variant
function out = slveqs(namvar,n,eqs)
%{
namvar - string (e.g. namvar = 'V')
n - double (e.g. n = 2)
eqs - cell array string value(e.g. eqs = {'V1^2-V2 = 4','V1+V2 = 8'})
%}
k = num2cell(sym(namvar,[n,1]));
out = solve(eqs{:},k{:});
  1 Comment
armood
armood on 14 Jun 2019
Hello
I appericiate your attention. I tried this script but I'm affraid it doesn't work propperly. Can you help me out please? an example or something...

Sign in to comment.

More Answers (1)

Yagna V
Yagna V on 22 Jan 2020
clc;
clear all;
n=input("Enter Number of Equations to be formed: ");
syms v [1,n]
for i=1:n
eqn(i) = (v(i)+1)^2+(v(i)-1)^2==20;
disp(eqn(i));
end
S=solve(eqn)
After this u get an array where the values are stored in symbols

Categories

Find more on Symbolic Math Toolbox in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!