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Convert a number from one set of units into another. The value for <to> will be overwritten by dtNaN if <to> and <from> do not belong to the same unit groups and do not have the same dimensionality. -
Parameters:
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| to
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the quantity containing the units to convert to. Note that the value of this quantity will be overwritten with the result or dtNaN if there was a problem. |
| from
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the quantity containing the units and value to convert from. |
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Returns:
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the return value is a 0 on success or 1 when units fail to match.
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