scale a number by a power of 10
scale a number by a power of 2
The Scale10(x, N) function returns x * 10^N.
The operation is carried out in the computation domain determined by x, and the result is a member of this computation domain. The UseHardwareFloats mode is not checked.
This function can signal either overflow or underflow.
If x is undefined, the result is x. If N is undefined, the result is undefined in the computation domain of x.
If x is a software floating-point number, Scale10(x,N) just adds N to the exponent of x (that is, no multiplication is required).
The Scale2(x, N) function returns x * 2^N.
For special values, Scale2 returns the following results. Similar results are returned in the case of Scale10.
1. Scale2(undefined, N) = undefined
the input undefined
2. Scale2(x, undefined) = undefined
in the domain of x
3. Scale2(0, infinity) = undefined
in the domain of the first argument; signals Invalid
4. Scale2(x, infinity) = signum(x)*infinity
5. Scale2(+-infinity, -infinity) = undefined
6. Scale2(+-infinity, N) = +-infinity
7. Scale2(x, -infinity) = signum(x)*0
the 0 of the domain of x; no signal
The Scale10 and Scale2 commands are thread-safe as of Maple 15.
For more information on thread safety, see index/threadsafe.
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