Function rt = real2text_decompose(rt) returns the struct after the insertion of decomposition data, which are obtained from text representations of reals produced by function real2text_sprintf(). The input struct rt must have the following fields: rt.data (vectorised input as a one-dimensional cell-array, in which each finite real has been replaced by a string) rt.realtype (vector of integers classifying each element in rt.data with value 0 for a non-real, value 1 for a finite real, and values 2...5 for non-finite reals -Inf, +Inf, NaN and NA, respectively) rt.precision (string with the sprintf-template, or integer >= 0) The output struc rt contains new or renewed fields: rt.decomp.mnt (one-dimensional cell-array of strings consisting of the sign and mantissa) rt.decomp.pot (one-dimensional cell-array of signed integers indicating the power-of-ten of the first digit in the mantissa) rt.decomp.nsd (one-dimensional cell-array of integers indicating the number of significant digits, i.e. length(rt.decomp.mnt{k}) - 1) If rt.precision == 0, trailing zeros in the text representations of reals in rt.data are removed and ignored. (c) 2026 fabien van mook 2026.08.20 release of this file within package "fvm-real2text" under GNU GPLv3+