# Lattice Multiplication Calculator

> Multiply nonnegative integers and show digit-by-digit partial products used by a lattice method.

Page: https://askcalculators.com/calculator/lattice-multiplication-calculator/
Definition: https://askcalculators.com/calculator/lattice-multiplication-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/lattice-multiplication-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/lattice-multiplication-calculator/?multiplicand=347&multiplier=58

## Inputs
- multiplicand: Multiplicand; type=text; required; default=347
- multiplier: Multiplier; type=text; required; default=58

## Outputs
- product: Product; format=text; primary
- digitProducts: Digit products; format=text

## Formula
product = multiplicand × multiplier; lattice cells contain each pair of digit products

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.