calendarDuration.ismatrix
calendarDuration: TF = ismatrix (calD)
Return true if calendarDuration array is a 2-D array.
TF = ismatrix (calD) returns a logical scalar
TF, which is true if the calendarDuration array calD
is a matrix and false otherwise. A matrix is an array of any
type where ndims (X) == 2 and for which
size (X) returns [H, W] with non-negative
H and W.
Source Code: calendarDuration