无法在 Mathematica 试用版中使用 Export()
每次我尝试使用 Export 时，都会收到此错误：
General::unavail: Export is not available in this version of Mathematica.
为什么试用版不提供 Export()？
谢谢。
Every time I try to use Export, I get this Error:
General::unavail: Export is not available in this version of Mathematica.
Why isn't Export() available with the Trial version?
Thanks.
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如果您想了解 Mathematica 如何与更广泛的系统集成，这并不是一个完全不合理的问题。试用版过去是禁用保存的，大概情况仍然如此。 Export 对此提供了一个非常有用的解决方法，因此它也被淘汰了。
您的选择是：
Put/Write。Run命令：cmd = "echo " <> ToString[{{your}, {data}, {here}}] <> “ | cat - >> 输出.dat”Run[cmd]将
ToString[...]替换为您拥有的任何表达式。这不适用于图形，但也许还有另一种方法？也许是原始位图数据。编辑：是的，使用例如ImageData[your_img, "Byte"]获取 0..255 RGB 值的字节数组。 ImageData 支持几种类型和交错，因此您的下游程序应该能够将其读回。It's not an entirely unreasonable question if you're trying to see how Mathematica might integrate with a wider set of systems. Trial versions used to be save disabled and presumably this is still the case. Export makes a pretty useful workaround for that, so it too is knocked out.
Your choices are:
Put/Write.Runcommand:cmd = "echo " <> ToString[{{your}, {data}, {here}}] <> " | cat - >> output.dat"Run[cmd]Replace that
ToString[...]with any expression you have. This won't work for graphics but perhaps there's another way there? Raw bitmap data maybe. EDIT: Yes, use egImageData[your_img, "Byte"]to get a byte array of 0..255 RGB values out. ImageData supports a few types and interleaving, so your downstream program should be able to read it back in.