Interpolation

NumXL is an Excel add-in which streamlines financial modeling and time series analysis, making it simpler to forecast and scrutinize data. It offers easy econometrics for effortless data analysis.

This software enhances Excel's capabilities by adding data curve fitting, interpolation, and smoothing functions. The functions include polynomial fits, splines, and local regressions while the filters feature moving average, Gaussian smoothing and median filtering.

This Excel add-in offers eleven powerful worksheet functions for one, two, and three variable lookup and interpolation. It supports various methods like linear, cubic spline, and polynomial curve fitting. The software also includes online help and example workbooks.

This Excel add-in offers 11 functions, for 1, 2 and 3 variable lookup and interpolation. It enables closest-value, linear, piecewise parabolic, hyperbolic and cubic spline interpolation, and polynomial curve fitting. The software comes with online help and example workbooks for added convenience.

This Excel add-in offers eleven potent worksheet functions for 1-3 variable lookup and interpolation. It includes various interpolation methods, such as closest-value, linear, and cubic spline, plus an online help feature and sample workbooks for easy implementation. Polynomial curve fitting is also included.

The program provides multiple options for resizing digital photos, including the advanced STOIK Smart Resize algorithm that lets users enlarge images up to 1000% while retaining clear details.

This software creates diagrams from text files and provides automatic or manual scaling options. Multiple text files can be opened at once, with the ability to divide columns by commas, tabulators, or semicolons.

SurGe is a software tool that generates an interpolated surface function based on two independent variables. It employs the ABOS method for interpolation and approximation.