This gem solves the problem of several decimal places in divisions where the result must be presented in cents, that is converting the division result to only two decimal places and the difference is attributed to the first p...

Let CSV-like files behave like DB-tables: selection, data operations on columns. Easy plotting with gnuplot and modelling

ctioga2 is a command-driven plotting program that produces high quality PDF files. It can be used both from the command-line and using command files (at the same time). It is based on Tioga (http://tioga.sourceforge.net).