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Originally posted by ghw_nit at 2011-01-08 14:32:43:
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ff = -2 * pi ^ 2 * sin( pi * x ) * sin( pi * y' )
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ff = -2 * pi ^ 2 * sin( pi * x' ) * sin( pi * y );

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Originally posted by ghw_nit at 2011-01-07 20:04:38:
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function f=f(x,y)
f=-2*pi^2*sin(pi*x)*sin(pi*y);
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