Only the current version so far — new entries appear as the app ships updates.
Interpolation Calculator is an education app by Atikas with 10,000+ downloads (about 12K estimated). +6 installs in the last 7 days. Released May 15, 2018. Install growth, rank history, SDKs and ad networks.
From the store listing: “Calculate linear, bilinear and inverse interpolation using Lagrange's method.”