符号工具箱中的变量赋一个矩阵报错：ERROR: MethodError: no method matching setindex! - FAQ

问题现象

符号工具箱中的变量赋一个矩阵报错：ERROR: MethodError: no method matching setindex!(::Num, ::Matrix{ComplexF64}, ::Colon, ::Colon, ::Int64)

代码：

using TySymbolicMath
@variables w = zeros(ComplexF64, (4, 4, 16))
a = zeros(ComplexF64, (4, 4))
w[:, :, 1] = a

初始化不需要@variables，w = zeros(Complex{Num}, (4, 4, 16))这样初始化后再运行。

using TySymbolicMath
w = zeros(Complex{Num}, (4, 4, 16))
a = zeros(ComplexF64, (4, 4))
w[:, :, 1] = a