noise_table question

In the 2.2 LRM, Section 4.5.4.3 it says

/"The noise_table() function interpolates a vector to model a process 
where the spectral
density of the noise varies as a piecewise linear function of frequency. 
The general form
is
noise_table( vector [ , name ] )
where vector contains pairs of real numbers: the first number in each 
pair is the
frequency in Hertz and the second is the power. Noise pairs are 
specified in the order of
ascending frequencies. noise_table() performs piecewise linear 
interpolation to compute
the power spectral density generated by the function at each frequency."/

It's not entirely clear to me that each frequency must be greater than 
the previous one (as opposed to greater than or equal). If "greater than 
or equal" were permitted, then it would introduce the posibility of two 
frequencies having different power levels, which would make the 
interpolation ambiguous. Clearly this is not the intent.

Do you think that it is worth changing the wording to make it explicit 
that no duplicate frequencies are allowed?

Regards
Paul
-- 
Dr Paul Floyd
Mentor Graphics Corporation


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