how to accept equations from the user and convert to a matrix?

1 次查看（过去 30 天）
Swati Umamaheshwaran
评论： Swati Umamaheshwaran 2017-9-15
Please help me. I am writing a code to accept equations from the user and then convert it to a matrix to perform row operations. The purpose is to create a generic code for a system of linear equations. Following is the code .
m = input ('Enter number of unknowns: ');
n = input ('Enter number of equations: ');
syms x y
for j=1:n
equ(j)= input ('Enter equations: ','s');
end
for j=1:n
func(j) = evalin(symengine, equ(j));
end
for j=1:n
[A,B] = equationsToMatrix([func(j)], [x, y])
end

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2017-9-15
Change
equ(j)= input ('Enter equations: ','s');
to
equ(j) = string( input ('Enter equations: ','s') );
This requires R2016b or later.
This change is adjusting for the fact that in MATLAB, input() with the 's' parameter requires a character vector, which will be a vector, and vectors cannot be stored into a single location like equ(j) . The string() call converts the character vector into a string object, and string objects can be stored into a single location like equ(j)

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Characters and Strings 的更多信息

标签

尚未输入任何标签。

Community Treasure Hunt

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

Start Hunting!

Translated by