Useful Codelets Python and C# code examples     Iterative Density Porosity (Python 3.x) Algorithm for computing total porosity (Phi_t) in formations with variable matrix density.     Archie S_wa (Python 3.x) Algorithm for computing apparent water saturation (S_wa) from effective (open) porosity Phi_e, formation water resistivity R_w and true formation resistivity R_t.     Triangle Solver (Python 3.x) Solves a triangle by any permutation of sides and angles given     Height by Triangulation (Python 3.x) Determines an object height from three geological compass inclination measurements and one base distance     Object Size by Triangulation (Python 3.x) Determines a remote body size and height from three geological compass inclination measurements and one base distance     Nelder-Mead Optimization (C#) Based on the research paper «A Simplex Method for Function Minimization» (1965), by J.A. Nelder and R. Mead     Letters and numbers (Python 3.x) Solve the TV number puzzles like a pro! To get the oil price, please enable Javascript. To get the BRENT oil price, please enable Javascript.     31-Oct-2019 New species in Codelets Zoo! 09-Oct-2019 Updated the SlideComposer on-line help. 02-Oct-2019 PETRONODE website undergoes a major facelift, using Python and Flask. 26-Sep-2019 Completed chapters 17 - 20 of Limits to Limits. 16-Dec-2018 Added chapters 13 - 16 of Limits to Limits. 24-Jan-2018 Updated Course Synopses. 31-Dec-2017 Added chapters 11 and 12 of Limits to Limits. 23-Oct-2017 Published first 10 chapters of Limits to Limits. (C) M.Yakimov, 2006