timeseries.mldivide
timeseries: ts = mldivide (a, b)
The matrix left division of series, a \ b.
ts = mldivide (a, b) returns the matrix left
division of b by a, sample by sample; each result keeps the
size of one sample. One of them may be a number whose size fits the
division with one sample.
The rules for two series are given under timeseries.plus,
save that DataInfo.Units is dropped, since a product or
quotient of units is the unit of neither; MATLAB keeps it where both
series have the same.
See also: timeseries.mrdivide, timeseries.ldivide
Source Code: timeseries