在MATLAB环境中,遇到“unable to convert expression containing symbolic variables into double array”这样的错误通常意味着你试图将一个包含符号变量的表达式当作双精度浮点数数组(double array)来处理,但MATLAB无法自动执行这种转换,因为符号变量本质上不表示具体的数值。以下是针对这个问题的详细解答,分为几个关键点: ...
If FUN is a MATLAB object, it must have an feval method. Error in Untitled2 (line 71) x4 = fzero(f4, -2 - sqrt(3)) Error using fzero (line 128) FZERO accepts inputs only of data type double. 4 syms类型的函数转换为function handle:str2func syms a b c x; g = a*x^2 + b...
번역 댓글:Antoine van Hirtum2018년 6월 12일 symboliccelltomatrix.m How to convert Symbolic Cell to Matrix Double on which I can perform calculations and which I can plot? The cell2mat function does not seem to work. Thanks for your help. syms R;%Radius Pi = sym('pi');%...
1 Fourier变换 根据卷积性质, ,于是 ,示例代码如下。 syms t convF=@(f1,f2,z)symfun(ifourier(fourier(f1).*fourier(f2),z),z);fn1=sin(t);fn2=rectangularPulse(0,2,t);% u(t)-u(t-2)fn3=convF(fn1,fn2,t);% convert to double valuesdouble(fn3(-5:.1:5));% plot function...
However, your question is confusing. You say "when i use Mupad command, i could't use this method" implying you are trying to do this within MuPAD, but converting to IEEE double precision is not supported within MuPAD (as far as I can see.)
fprintf('%.1f %.1f %.10f\n',x, t, double(wij(i,j))); end ifstopping_loop;break;end end Sign in to comment. Sign in to answer this question. See Also MATLAB Answers I only need to display the first 11 rows of the answer ...
How to solve: Error using symengine 'Unable... Learn more about symbolic, convert, subs, double, error MATLAB
The following error occurred converting from sym... Learn more about sym, double array, rosen gradient
matlab gives me the result in terms of x1, without any problems. if i try to run the program using the for cycle the following error appears: ??? The following error occurred converting from sym to double: Error using ==> mupadmex ...
You can convert a symbolic number to variable-precision arithmetic by usingvpa. The result is a decimal number with 32 significant digits. thetaVpa = vpa(thetaSym) thetaVpa = 0.78539816339744830961566084581988 To convert the symbolic number to a double-precision number, usedouble. For more informatio...