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Latest Posts


Version 3.2: Reals and Formulas

23 May 2020


New in DT5GL: Real numbers (also called floats) and Formulas. Each variable in a formula is (from left to right): 1. retrieved from a database (SQLite, PostgreSQL, etc.), or 2. asked to the user...

Short introduction to this website.

14 Feb 2020


What route to take on this website to answer a simple question like: Which form code is applicable when the tax form is being filled in: > Doccode = 28 > Taxable income = 48000 > Age = 66 > Agi...

Some strange behavior on the tab dt5gl?

15 Feb 2020


After pressing the "Input source" button the message: Error: field must be filled in! or after pressing the button "Input value" the message: Error: program source must be filled in! or answe...

Decision tables in Excel?

11 Mar 2020


Currently, the tool reads the decision tables from a text file, which can be edited with Notepad or Notepad++ (recommended!). But the tool could just as well read the tables from Excel! And that...