1. 解释什么是MATLAB中的empty sym 0-by-1 empty sym 0-by-1是MATLAB符号计算工具箱(Symbolic Math Toolbox)中的一个结果,表示在使用solve函数或其他符号计算函数求解方程或方程组时,MATLAB没有找到任何解。这个结果表明,要么方程本身不存在实数解或符号解,要么MATLAB在当前版本或配置下无法解析求解该方程。 2. ...
matlab解方程出现Empty sym: 0-by-1？这个答案说明，该方程本身无解，或者该方程过于复杂。处理建议：1、检查除未注变量外的已知变量是否已知代入eq1,eq2,eq3,eq4,eq5中；2、然后用vpasolve函数替代solve函数 v_MT_Estimate=vpasolve(eq1,eq2,eq3,eq4,eq5)syms E Ty=exp(-E/(0.008314*T))...
sol = solve([eqn1, eqn2, eqn3], [Vo]); sol % sol.Vx symsx y z c eqn1 = 2*x + y + z == 2; sol = solve([eqn1], [x]); sol I try to obtain transfer function of a circuit but I get empty sym. I have three equations with many more variables, so I expect symbolic...
syms E T y=exp(-E/(0.008314*T));S=2*int(y,T,323.15,375.65)-int(y,T,323.15,387.817);solve(S,E)举例：syms x h=[];y=x+h 结果是：y = 【empty sym 】因为这个结果[empty syms]是唯一正确的结果。计算这里不是x，是个数:1+[]结果还是[]。因为你的h是空，原则上就...
Answers (1) Walter Robersonon 22 Mar 2020 0 Link You are asking to solve two simultaneous trig equations for a single variable, and MATLAB is deciding it does not know how to do that. If you were to solve for wo and wa simulteneously, then MATLAB would not get any further, because ...
matlab解方程时返回[ empty sym:0-by-1 ] tongxuru浏览1877次其他分享举报 symsETy=exp(-E/(0.008314*T))S=2*int(y,T,323.15,375.65)-int(y,T,323.15,387.817)solve('S','E')上面的是程序,要求E,可是每次返回的都是emptysym:0-by-1... syms E Ty=exp(-E/(0.008314*T))S=2*int(y,T,323...
eqn9= T_06(3,1)==H(3,2); eqn10= T_06(3,2)==H(3,2); eqn11= T_06(3,3)==H(3,3); eqn12= T_06(3,4)==H(3,4); sol = solve([eqn1, eqn2, eqn3,eqn4,eqn5,eqn6,eqn7,eqn8,eqn9,eqn10,eqn11,eqn12], [th1_, th2_, th3_, th4_,th5_,th6_]); ...
在使用MATLAB的solve函数求解非线性方程时,有可能会在求解的结果中出现z(或者z1)和root,无法得出数值结果。今天主要是以实际的例子,用三种方法解决这个问题。 1.实例1 程序 clc; clear all; syms x y z u v w; eqn=[-5*x+20*y+y*z==0,-x-5*y+2*x*z-v==0,-z+2*u-2*x*y==0,-z-5*...
I want to solve a series of dependent nonlinear equations in MATLAB. I have 31 equations and 31 unknown parameters. I entered these equations in MATLAB but when I use the 'solve' command, I get the following error in solved parameters: val = Empty sym: 0-by-1 Does anyone know the ...
Error on Symbolic calculation : "Empty sym... Learn more about vpa, equation, 0-by-1, threeparameteres, solve, stresslevel MATLAB