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        Dear Dune community,
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        When I try to use the yaspgrid as:
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<span style="font-family:SimSun;"><span style="background-color:#CCCCCC;">Dune::YaspGrid<2></span><span style="background-color:#CCCCCC;"> grid({-1.0,1.0}, {-1.0,1.0}, {2,2});</span></span><span style="background-color:#CCCCCC;"></span><br>
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        the compiler tells me:
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        <span style="background-color:#CCCCCC;">error: static assertion failed: YaspGrid coordinate container template parameter and given constructor values do not match!</span><br>
<span style="background-color:#CCCCCC;">       static_assert(std::is_same<Coordinates,EquidistantOffsetCoordinates<ctype,dim> >::value</span>,<br>
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If I replace "<span style="white-space:normal;">EquidistantOffsetCoordinates" with "EquidistantCoordinates" in yaspgrid.hh, then it is OK.</span>

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        What is wrong here, and how can I use yaspgrid properly?
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        Thanks!
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        <span style="font-family:SimSun;"><br>
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        <span style="font-family:SimSun;">--</span>
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        Yours sincerely,
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                Junming Duan
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