Its a first try to handle some equations to calculate the index of refraction of glass and polymeres with different types of fit-algorythms

my intention was

• to get good starting numbers
• to create good starting numbers
• work with random numbers
• calculate it on multicore
• work with only 3 or 4 datapoints of the glass measured with a goniometer(metricon) on 3 or 4 wavelenghts
• (its not only sellmeier!)

curveexpert.zip is a large number of fit-formulas ready to use in CurveExpert, all for refractive index, many of them are self created (non physical based only mathematical) especially if you have only 3 or 4 data points https://www.curveexpert.net/products/curveexpert-basic/

i have a small exe 200MB (is a standalone running program writen from a student) to get very fast some solutions for 3,4,5,6 datapoints, ask me if you are interessted