lemonergy· battery engineering courses

Lemonergy · Studio block

Interpolate from prelookup

Interpolates a table using already computed cell indices and fractions.

Implementation ID
native-interpolate-prelookup
Reviewed
2026-10-27

Behavior

y = weighted multilinear combination of the supplied cell corners. The worked example connects this operation to signals in Lemonergy Studio.

Interface

Interpolate from prelookup interfaceInputs or arguments on the left, observed outputs on the right. Conserving terminals appear below the component. The tables give units and behavior.Interpolate from prelookupStudio blockin0in1out0
Original Lemonergy interface view. Lines identify ports; they are not a completed simulation circuit.
Ports and observed outputs
NameDirectionUnitMeaning
in0input1Cell indices; u32 2 array.
in1input1Fractions; real 2 array.
out0output1Value; real scalar.

Parameters

Defaults are initial model values. Select values for your own model and operating conditions.

Configuration fields
ParameterUnitDefaultMeaning and limits
First axis size
params[0]		12Configured finite numerical parameter.
Second axis size
params[1]		12Configured finite numerical parameter.
Table values
tables[0]		1[0, 1, 4, 5]Column-major; first axis varies fastest.

Equations and rules

  • y = weighted multilinear combination of the supplied cell corners

Worked example

Interpolate from prelookup — worked example

Cell indices = [0,0]; Fractions = [0.5,0.5]. Value at 0 s = 2.5.

Open Studio example after release →
Numerical checks for the bundled synthetic example
OutputTime (s)Expected valueUnitAbsolute tolerance
Value
out0		02.511e-08

Explore the recorded outputs

Interpolate from prelookup recorded example

Interpolate from prelookup
Interpolate from prelookup against timeRecorded synthetic simulation values. Time in seconds; output in —.202.250.252.50.52.750.7531—Time (s)
Interpolate from prelookup: 2.5 — at 0 s

2 actual recorded samples. Lines are visual guides between samples. Synthetic example, not measured cell data.

Download the recorded samples (JSON) · Open this Studio example after release

Use in a workflow

Interpolate from prelookup — worked example

Interpolates a table using already computed cell indices and fractions.

  1. Interpolate from prelookup: y = weighted multilinear combination of the supplied cell corners. The worked example connects this operation to signals in Lemonergy Studio.
    • Use the block reference for settings and connections.
    • Implementation tested locally; public release pending.
Open Studio example after release

Connected concepts

Limits and interpretation

  • Shapes and element types are explicit. Values must be finite; automatic reshaping and unit conversion are not performed.

Scientific and mathematical references

These sources explain the scientific and mathematical background. The behavior, interface and limits above define the Lemonergy implementation; a citation does not imply every model option in the source is implemented.

  1. NIST Digital Library of Mathematical Functions, §3.3 Interpolation

    National Institute of Standards and Technology

    Technical reference · Interpolation formulas, including linear interpolation equation 3.3.14.

Implementation sources

This reference follows the public interface and locally verified numerical checks for an upcoming release.

Contract: Lemonergy Studio public contract · Verification record: verification-2026-10-27

  • docs/glossary/native-block-verification.json

This implementation and its workflow uses (JSON) · Knowledge graph (JSON-LD)