Chemical titration, drying, precipitation analysis calculation, conductivity titration (automatic line drawing, calculation of standard solution dosage and measured solution concentration and content. There are demonstration examples), PH calculation of various solutions, molecular weight calculation, element number, percentage, equation Balance, material balance, Ksp calculation, data statistics and analysis, Q test method, Grubbs method, spectrophotometric analysis (regression equation, correlation coefficient, storage and recall of standard curve, query concentration), liquid and solid preparation Solution calculation, solution concentration unit conversion, self-set background color, self-built titration analysis project, etc. New in this version: calculation of general calculation coefficients and calculation coefficients in the weight method