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Usage:
log(x), x REAL or a structure with REAL components
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Keywords:
transformations
log(x) returns the natural logarithm (base e log) of the elements of x,
when x is a REAL scalar, vector, matrix or array. The result has the
same shape as x.
If any element of x is MISSING, so is the corresponding element of
log(x). If any element of x <= 0, the corresonding element of log(x)
is MISSING. In both cases a warning message is printed.
When x is a structure, all of whose non-structure components are REAL,
log(x) is a structure of the same shape and with the same component
names as x, with each non-structure component transformed by log().
See topic 'transformations' for more information on log().
Gary Oehlert
2003-01-15