Linear interpolation (LERP) estimates a value between two known points: lerp(a, b, t) = a + t(b − a), where t∈[0,1]. At t=0, result=a. At t=1, result=b. At t=0.5, result=midpoint. Used everywhere: animation easing, color blending, sensor data, financial projections.
How to Use
Enter endpoints and parameter:
- a: Start value
- b: End value
- t: Parameter (0 to 1)
Formula
- lerp(a,b,t) = a + t(b−a)
- lerp(a,b,t) = (1−t)a + tb
- Both forms are equivalent
Applications
- Animation: smooth transitions
- Colors: gradient blending
- Game dev: smooth movement
- Data: filling gaps between measurements
Step-by-Step Instructions
- 1Enter start value (a).
- 2Enter end value (b).
- 3Set parameter t (0–1).
- 4View the interpolated result.
- 5Drag the slider to explore.