Causes an error:"Error using syms (line 222). Invalid variable name." This code creates a 1x1 sym object 'a', but not the expected 1x4 symbolic vector. The exact same error occurs on my own computer running R20
I am having an issue using the syms command: syms x(t) y(t) getting the following error: Error using assignin Invalid variable name "x(t)" in ASSIGNIN. Error in syms (line 56) assignin('caller',varargin{i},sym(varargin{i})); Error in Untitled (line 1) syms x(t) y(t) I am...
You can change the naming format of the generated elements by using a format character vector. Declare the symbolic scalar variables by enclosing each variable name in single quotes.symsreplaces%din the format character vector with the index of the element to generate the element names. Get syms...
Question:By using bothsyms,latexandtextfunctions/tools (as in the example here below), how can I show the variable name instead of its value, in a plot's text ? What I currently have:In this example, if I assign a value to the variable "a",...
symsx(t)y(t) ode1 = diff(x) == x(t)*y(t) + 0.5*x(t)^3 + x(t)*y(t)^2; ode2 = diff(y) == -y(t) - 2*x(t)^2 + x(t)^2*y(t); odes = [ode1; ode2]; cond1 = x(0) == 0; cond2 = y(0) == 1; ...
今天下午在看一本叫做控制系统计算机辅助设计的书,清华大学出版的,在第3章 我遇到这样一个问题,书上有段程序如下 >>syms G1 G2 G3 G4 H1 H2 H3 c1=feedback(G4*G3,H3); c2=feedback(c1*G2,H2/G4); G=feedback(c2*G1,H1);pretty(G) 出现如下错误??? Error using ==> feedback at 72 ...
syms y assume(y ~= 0) assumeAlso(y,'real') assumeAlso(y*i,'real') Return all assumptions affecting variableyusingassumptions: assumptions(y) ans = [ in(y, 'real'), in(y*1i, 'real'), y ~= 0] For further computations, clear the assumptions. ...
Assume Variable Is Even or Odd Assumexis even by assuming thatx/2is an integer. Assumexis odd by assuming that(x-1)/2is an integer. Assumexis even. syms x assume(x/2,"integer") Find all even numbers between0and10usingsolve. ...
分享1赞 奥鹏平台答案吧 mya57351Fairy 国开电大《Matlab语言及其应用》形考作业1答案答案:wslm1209Matlab提供了两种创建符号变量和表达式的函数:sym和syms。()xy12_是合法的Matlab变量名。 ()Matlab中的变量必须遵循先定义后使用的原则。()Matlab的含义为矩阵实验室(Matrix Laboratory)。()... 1回复赞 matlab吧 ...
syms x assume(x/2,'integer')* p4 z- d! |/ S; j4 Z8 W ) ^4 h/ }, N0 P9 u: L...