Currently, interpolation is a function that allows users to estimate values from 1 column to another. However, in industry, it is very possible to have to interpolate across multiple columns. Having the option is cleaner an more accurate then using a multidimensional best fit curve to estimate
This is really important and requested feature in Power generation industry as well.
Many turbine's and/or other equipment performance is tabulated in accordance with more than 1 variables. Currently they are doing it in Excel or PI datalink which is a bit messy and hard to manage.
