least significant unit
The lsu command returns the unit in the nth significant place of x. This is called the least significant unit of x in the nth place. For example, lsu(3, 3.14159) returns 0.01 (the unit in the third significant place).
This operation is designed to be used when setting the tolerance for correct answers. For example, to accept an answer to within a tolerance of one unit in the third significant digit, use: lsu(3, answer).
The MapleTA[Builtin][lsu] command was introduced in Maple 18.
For more information on Maple 18 changes, see Updates in Maple 18.
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