代码:
clc;
close all;
syms x y;
y=221.9*(2*coth(2*a)-coth(a));
a=(9.27*10^-21*2.22*(10+31519.1*y))/(1.38*10^-16*x);
ezplot(y,[0,3000,0,100000000]);
title 'a';
报错:
。。。。。。。(省略很多这种数字)34193393270570125./166153499473114484112975882535043072))./(1399486262651965.*x)))./91343852333181432387730302044767688728495783936 +34193393270570125./166153499473114484112975882535043072))./(1399486262651965.*x)))./10
错误: {、[ 和 ( 的嵌套深度不能超过 32。
出错 inline/feval (line 33)
INLINE_OUT_ = inlineeval(INLINE_INPUTS_, INLINE_OBJ_.inputExpr, INLINE_OBJ_.expr);
出错 ezplotfeval (line 53)
z = feval(f,x(1),y(1));
出错 ezplot>ezimplicit (line 271)
u = ezplotfeval(f, X, Y);
出错 ezplot (line 167)
hp = ezimplicit(cax, f{1}, vars, labels, args{:});
出错 sym/ezplot (line 78)
h = ezplot(fhandle(f),varargin{:});%#ok<EZPLT>
出错 Untitled3 (line 6)
ezplot(y,[0,3000,0,100000000]);

 Accepted Answer

不知道对不对:
clc;
close all;
f=@(x,y)221.9.*(2.*coth(2.*(9.27.*10.^-21.*2.22.*(10+31519.1.*y))./(1.38.*10.^-16.*x))...
    -coth((9.27.*10.^-21.*2.22.*(10+31519.1.*y))./(1.38.*10.^-16.*x)))-y;
fimplicit(f)
title 'a';

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