[MATLAB基础] 运行出错了，请教大家

[weijian1215]

我重新建了一个m文件，命名为“test.m”
里面就下面三行语句：

clear all;
close all;
clc
syms theta d_n d_k

点击运行就出错，出现如下提示：

??? Error using ==> mupadinit at 35
Unable to initialize kernel
Error in ==> mupadengine.mupadengine>mupadengine.evalin at 115
[result,status] = mupadmex(statement,8);
Error in ==> D:\Program Files\MATLAB\R2008b\toolbox\symbolic\symengine.p>symengine at 25

Error in ==> sym.sym at 69
eng = symengine;
Error in ==> syms at 77
assignin('caller',x,sym(x));
Error in ==> test at 5
syms theta d_n d_k