Find the error function of the elements of a vector. V = [-0.5 0 1 0.72]; erf(V) ans =1×4-0.5205 0 0.8427 0.6914 Find the error function of the elements of a matrix. M = [0.29 -0.11; 3.1 -2.9]; erf(M) ans =2×20.3183 -0.1236 1.0000 -1.0000 ...
Error Function The following integral defines the error function: erf(x)=2√πx∫0e−t2dt Tips Callingerffor a number that is not a symbolic object invokes the MATLAB®erffunction. This function accepts real arguments only. If you want to compute the error function for a complex number,...
MATLAB问题 运行会出现:Error: Function definitions are not permitted at the prompt or in scripts.fuction [K,L,T,G1]=getfolpd(key,G) switch key case 1, [y,t]=step(G); fun=inline('x(1)*(1-exp(-(t-x(2)/x(3))).*(t>x(2))','x','t'); x=lsqcurvefit(fun,[1 1 1],t...
I am using MATLAB livelink for a heat transfer problem. I am trying to define a function for density of the material used in my model. I use the following commands in MATLAB to make the function. I should also mention that Density.m file is also in the directory in which the main MA...
Hi everyone. I'm working with a large symbolic matrix and I converted this matrix in a function with matlabFunction command. After 8 hours of processing, MATLAB give me a function that doesn't work. This is the error: >> A_lin(1e-5, 1e-5, 1e-5, 0, 0, 0, 1, 9.81...
matlab:Error: Function definitions are not permitted in this context.怎么回事?function[Em,E0]=GameMont1(n) a=nchoosek(16,8); P=0; for i=4:8 P(i-3)=2^(i~=4)*nchoosek(8,i)*nchoosek(8,8-i)/a end E0=P*[-3,0.2,0.5,1,10]’; Freq0=zeros(1,5); for i=1:n x=randsample...
Compute the imaginary error function forxandsin(x) + x*exp(x). For most symbolic variables and expressions,erfireturns unresolved symbolic calls. syms x f = sin(x) + x*exp(x); erfi(x) erfi(f) ans = erfi(x) ans = erfi(sin(x) + x*exp(x)) ...
function [pl,ql,pr,qr]=pdexlbc(xl,ul,xr,ur,t)%a表示下边界,b表示上边界pl=88.464;ql=1;pr=1.25*u2-22;qr=1;%% 初值条件函数function u0=pdexlic(x)u0=22;clcx=0:0.02:0.3;t=0:0.360:3600;m=0;sol=pdepe(m,@pdexlpde,@pdexlic,@pdexlbc,x,t);...
matlab,initio,contex,function 你在新建一个函数文件，具体过程如下： 1.你打开Matlab程序，左上角File---New---Function； 2.将你看见的一些代码删了，然后将你上面的代码复制上去； 3.文件名为simpson; 4.然后在matlab里面输入simpson(20);括号里面的数字看你的需要填写 ...
Error in user-defined function. - Function: dfull_expression_PL_dT Failed to evaluate expression. - Expression: d(d((2*test(mod1.Te)*mod1.Irzt*full_expression_PL(mod1.Te,z)*pi*r)*(dvol),{test@0}),mod1.Te) The attached file is the Screenshot of the matlab function definition ...