Function o = real2str(r,m,g,k) o = real2str(r,m,g,k,outputarray) returns a string representation of real r (with m-th power of ten and g significant digits). The string representation contains a sign (only when r is negative), a fractional part (with a decimal dot) and the k-th power of ten. The result can be expressed with the following pattern: [-]d[.d[d*]]e[-]d[d*] where "d" indicates a single digit, brackets a possible expansion, "*" zero or more times the type of the previous token, "-" the negative sign, and "." the decimal dot, and "e" the letter e after which the integer k is printed. If r, m, g and k are matrices with more than one elements (all of the same size), output o will be a cell array of the same size. Output o will always be a cell array, if the optional input argument outputarray is 1. A real may have a non-finite value, it will be displayed as "NA", "NaN", "Inf" or "-Inf". (c) 2026 fabien van mook 2026.08.20 release of this file within package "fvm-real2eng" under GNU GPLv3+