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Features

The Interpolation.net Excel add-in is designed to make interpolation in Excel simple, powerful, and efficient. Here's what makes it special.

Core Features

Comprehensive Function Library

Access 26 specialized functions covering all major interpolation methods and related operations.

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Highlights:

  • 7 interpolation methods (Linear, Cubic Spline, Akima, PCHIP, Step, Loglinear, Neville)
  • First and second derivative calculations
  • Numerical integration support
  • Consistent syntax across all functions

Intuitive Data Visualization

Visualize your interpolation results with built-in charting capabilities.

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Highlights:

  • Plot interpolated curves alongside original data
  • Compare multiple interpolation methods
  • Export high-quality charts
  • Interactive legend and tooltips

Excel Integration

Works seamlessly with Excel's native features.

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Highlights:

  • Standard Excel formula syntax
  • Works with named ranges and tables
  • Supports dynamic arrays (Excel 365)
  • Compatible with VBA and Power Query

All Features

Explore detailed information about each feature:

Benefits

For Data Analysts

  • Fill gaps in time series data
  • Smooth noisy measurements
  • Resample data to different frequencies

For Engineers

  • Interpolate lookup tables
  • Analyze experimental results
  • Process sensor data

For Financial Professionals

  • Construct yield curves
  • Interpolate option prices
  • Model market data

Next Steps