Error in my code

Urgent Help, please!

I have the following code. But I got the following error :

Attempt to add "fu1" to a static workspace.

Error in Qtest3 (line 2)

fu1 = @(x,y)9.02*10^28.*exp(-x.*2.33).*exp(-165*1*((5-x).^(0.5)-(16.*y).^0.5));

fu1 = @(x,y)9.02*10^28.*exp(-x.*2.33).*exp(-165*1*((5-x).^(0.5)-(16.*y).^0.5));
q = @(a,y)5.124+integral(@(x)fu1(x,y),0,a).*142-(exp(-37.45.*y).*(70.31));
fimplicit(q,[0 6 0 0.075],'MeshDensity',500, 'LineWidth',1.5),grid
hold off
legend('G = 5','Location','northeast')
xlabel('The tunneling-assissting thermal energy E(\times 10^{-20} J)','FontWeight','bold')
ylabel('The membrane potential V_m (V)','FontWeight','bold')
title('V_m{initial}= 0.07 V, L= 1\times 10^{-10} m, n = 1 and D = 10^{10} channels/cm^2')
ax=gca;
ax.FontSize=9;

Answer 1

[Voss]

See: https://www.mathworks.com/help/matlab/matlab_prog/resolve-error-attempt-to-add-variable-to-a-static-workspace.html

Answer 2

[Image Analyst]

When I copy and paste your code I get this:

Warning: Inf or NaN value encountered.

> In integralCalc/iterateScalarValued (line 349)

In integralCalc/vadapt (line 132)

In integralCalc (line 75)

In integral (line 87)

In test6>@(a,y)5.124+integral(@(x)fu1(x,y),0,a).*142-(exp(-37.45.*y).*(70.31)) (line 2)

In matlab.graphics.function.ImplicitFunctionLine>getFunction

In matlab.graphics.function/ImplicitFunctionLine/updateFunction

In matlab.graphics.function/ImplicitFunctionLine/set.Function_I

In matlab.graphics.function/ImplicitFunctionLine/set.Function

In matlab.graphics.function.ImplicitFunctionLine

In fimplicit>singleFimplicit (line 193)

In fimplicit>@(f)singleFimplicit(cax,f,limits,extraOpts,args) (line 152)

In fimplicit>vectorizeFimplicit (line 152)

In fimplicit (line 126)

In test6 (line 3)

Warning: Function behaves unexpectedly on array inputs. To improve performance, properly vectorize your

function to return an output with the same size and shape as the input arguments.

> In matlab.graphics.function.ImplicitFunctionLine>getFunction

In matlab.graphics.function/ImplicitFunctionLine/updateFunction

In matlab.graphics.function/ImplicitFunctionLine/set.Function_I

In matlab.graphics.function/ImplicitFunctionLine/set.Function

In matlab.graphics.function.ImplicitFunctionLine

In fimplicit>singleFimplicit (line 193)

In fimplicit>@(f)singleFimplicit(cax,f,limits,extraOpts,args) (line 152)

In fimplicit>vectorizeFimplicit (line 152)

In fimplicit (line 126)