function [rt,f,g] = twodsin(A,u0,v0,M,N)
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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)'.
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)'.
% 输出参数 g 未赋值
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