Question

matlab怎样解含有字母常量的方程组?

Answer 1

仍然和没有字母一样，直接用solve。例如
syms x y a
solve('y-a*x=0',y)
结果是
a*x

Answer 2

假设a为常量，举个例子。clc; clear all; close all;
syms a x
eq = a + x^2 - x;
solve(eq, x)

Answer 3

假设a为常量，举个例子。clc; clear all; close all;
syms a x
eq = a + x^2 - x;
solve(eq, x)结果
ans =

(1 - 4*a)^(1/2)/2 + 1/2
1/2 - (1 - 4*a)^(1/2)/2

>> 或者clc; clear all; close all;
eq = 'a + x^2 - x';
solve(eq, 'x')