function [rt,f,g] = twodsin(A,u0,v0,M,N)ticfor r = 1:Mu0x = u0*(r-1);for c = 1:Nv0y=v0*(c-1);f(r,c) = A*sin(u0x + v0y);endend t1=toc;ticr = 0:M-1;c = 0:N-1;[C,R] = meshgrid(c,r);q = A*sin(u0*R + v0*C);t2= toc;rt = t1/(t2+ eps);在命令窗口出现

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function [rt,f,g] = twodsin(A,u0,v0,M,N)ticfor r = 1:Mu0x = u0*(r-1);for c = 1:Nv0y=v0*(c-1);f(r,c) = A*sin(u0x + v0y);endend t1=toc;ticr = 0:M-1;c = 0:N-1;[C,R] = meshgrid(c,r);q = A*sin(u0*R + v0*C);t2= toc;rt = t1/(t2+ eps);在命令窗口出现

function [rt,f,g] = twodsin(A,u0,v0,M,N)ticfor r = 1:Mu0x = u0*(r-1);for c = 1:Nv0y=v0*(c-1);f(r,c) = A*sin(u0x + v0y);endend t1=toc;ticr = 0:M-1;c = 0:N-1;[C,R] = meshgrid(c,r);q = A*sin(u0*R + v0*C);t2= toc;rt = t1/(t2+ eps);在命令窗口出现
function [rt,f,g] = twodsin(A,u0,v0,M,N)
tic
for r = 1:M
u0x = u0*(r-1);
for c = 1:N
v0y=v0*(c-1);
f(r,c) = A*sin(u0x + v0y);
end
end
t1=toc;
tic
r = 0:M-1;
c = 0:N-1;
[C,R] = meshgrid(c,r);
q = A*sin(u0*R + v0*C);
t2= toc;
rt = t1/(t2+ eps);
在命令窗口出现错误:
>> [rt,f,g] = twodsin(1,1/(4*pi),1/(4*pi),512,512);
One or more output arguments not assigned during call to 'E:\matlab7\work\twodsin.m (twodsin)'.

function [rt,f,g] = twodsin(A,u0,v0,M,N)ticfor r = 1:Mu0x = u0*(r-1);for c = 1:Nv0y=v0*(c-1);f(r,c) = A*sin(u0x + v0y);endend t1=toc;ticr = 0:M-1;c = 0:N-1;[C,R] = meshgrid(c,r);q = A*sin(u0*R + v0*C);t2= toc;rt = t1/(t2+ eps);在命令窗口出现
% 输出参数 g 未赋值

several values of the function f are shown. the function g is defined by g(x)=f(3x+1).what is the value of g(2) several values of the function f are shown above.the function g is defined by g(x)=f(3x+1)what is the value of g(2)? A portion of the graph of the function f is shown in the xy-plane above. What is the y-intercept ofthe graph of the function g defined by g(x)=f(x)+1? Matlab里写一个function,自变量列表可以含有通过syms定义的变量吗?比如 function [x, y] = mvp(f, g)其中syms a1 a2;f = [a1; a2];只是符号,没有值 function [rt,f,g] = twodsin(A,u0,v0,M,N)ticfor r = 1:Mu0x = u0*(r-1);for c = 1:Nv0y=v0*(c-1);f(r,c) = A*sin(u0x + v0y);endend t1=toc;ticr = 0:M-1;c = 0:N-1;[C,R] = meshgrid(c,r);q = A*sin(u0*R + v0*C);t2= toc;rt = t1/(t2+ eps);在命令窗口出现 一道英语的微积分题f(x)={(cosx-1)/x^2 for x≠0 -1/2for x=0}the function f,defined above,has derivatives of all orders.Let g be the function defined by g(x)=1+∫f(t)dt,t,0,xWrite the fifth-degree Taylor polynomial for g about x=0要讲原因 关于 是否存在这样的函数( 个人觉得是 常微分方程问题)Is there such a function?suppose g is a function satisfying the following two preperties:(a).g(x)=xg(1/x),for all real numbers x( x is not zero),and(b).g(x)+g(y)=1+g(x+y) f 1.given the function f(x) = x*2 -4x -5,find the values of:a) f(k-2) b) f(x*2) - x*2 f(1)2.given two functions f(x) = x*2 -3 and g(x) = 3x-4,find the values of:a) f(k+1) -g(k-1) b) f(g(x)) c) g(f(x))3.let f(x) = 1/1-x,finda) f(f(x)) b) f(f(f(x))) c) f 为什么可以由g(x)是f(x)的反函数得到g[f(a)]=a?RT find function f and g so that h(x)=(f times g)(x).h(x)=|3x+7|还有4x^3-103x+15可以化简吗? MATLAB 函数的一个输入变量是另一个函数比如有一个function [a,b]=example(c,d,e...).还有一个function a=example(f,g,h.).请问这个比如example里的输入参数C可不可以是另一个function(比如说example2)?. 英语翻译FINVERSE Functional inverse.g = FINVERSE(f) returns the functional inverse of f.f is a scalar sym representing a function of exactly one symbolic variable,say 'x'.Then g is a scalar symthat satisfies g(f(x)) = x.g = FINVERSE(f,v) uses the matlab:Error:Function definitions are not permitted in this context.function t = simpson(n)%Simpson求积公式求【0,1】上f(x)=x/(4+x^2)积分,以区间数n为自变量f=@(x)x/(4+x^2);g=@(x)(f(x)+4*f(x-1/(2*n))+f(x-1/n))/6;s=@(x)(g(x)+g(x-1/n)) matlab看不懂.function y=f(x) y=1./x+2*sin((2*x).^0.5);end >> format long>> x=3.3;h=0.1;g=(f(x+h)-2*f(x)+f(x-h))/(h^2) g = -0.009399348448680 >> x=3.3;h=0.001;g=(f(x+h)-2*f(x)+f(x-h))/(h^2) g = -0.009377437715230 >> x=3.3;h=0.001;g=(f(x+h)-2* 已知函数f(x)在[0,+∞)上是增函数,g(x)=-f(|x|) 若g(lgx)>g(1),求x的取值范围RT 有一个matlab的函数文件,但是不知道每一步的意思,函数文件内容如下:function [corr] = corrfft(f,g)%计算相关系数,其中f和g为两幅图像,本函数的作用是计算f和g的相关系数sze = size(f);sze = sze(1);f = fli 求解一段简单的MATLAB程序%将RGB图像转换为HSI图像% 显示HSI图像%直方图均衡化HSI图像%将HSI图像转换回RGB图像function rgbtohsi(x)F=imread(x);F=im2double(F);r=F(:,:,1);g=F(:,:,2);b=F(:,:,3);th=acos((0.5*((r-g)+(r-b)))./( 用Matlab 编的:function y=rt(t) if abs(t)