Multiplication By A Scalar, And Division By A Scalar; Absolute Value Function - HP 48gII User Manual

Attempting to add or subtract vectors of different length produces an error
message:

Multiplication by a scalar, and division by a scalar

Multiplication by a scalar or division by a scalar is straightforward:

Absolute value function

The absolute value function (ABS), when applied to a vector, produces the
magnitude of the vector. For example: A , A A ,
A
, will show in the screen as follows:
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