MULTIPLICATION (*)

Overview

The MULTIPLICATION operator multiplies two inputs across their combined dimension set. In other words, multiplication uses the union of both inputs’ dimensions.

The result keeps the finer level in each shared dimension and retains dimensions that exist on only one side.

Use this operator for standard multiplication without additional validation handling.

Syntax

'Node1' * 'Node2'

Example usage: 'Volume' * 'Price'

Parameters

Parameter	Description	Type	Required
Node1	First factor node, specified using the node name in single quotes (e.g.`'Volume'`)	Node reference	Yes
Node2	Second factor node, specified using the node name in single quotes (e.g.`'Price'`)	Node reference	Yes

Output Shape

Aspect	Behavior
Dimensionality	The result uses the combined dimension set (the union of both inputs’ dimensions). Per shared dimension, the finer level is used. Dimensions that exist on only one side are kept as-is.
Level values	Values are matched on shared dimensions. Non-shared dimensions expand the result across matching rows.
Row count	Equal or expanded.

Watch Out

Multiplication uses the combined dimension set (union), not the common dimensions. This is the opposite of addition and subtraction.
If one input has additional dimensions, the result expands to keep them.
This expansion is a common cause of unexpected output shape.
Units are multiplied together as well. For example, EUR * Quantity produces the combined unit EUR * Quantity.

Examples

Multiplying nodes with matching dimensions

Input node: Node1

Year	Value
2025	2
2026	4

Input node: Node2

Year	Value
2025	3
2026	1

Formula: 'Node1' * 'Node2'

Year	→ MULTIPLICATION Result
2025	2 * 3 = 6
2026	4 * 1 = 4

Multiplying nodes with some shared dimensions

This example shows how multiplication keeps the finer dimensionality from Node2.

Input node: Node1

Year	Value
2025	2
2026	4

Input node: Node2

Year	Product	Value
2025	A	2
2025	B	0
2026	A	1
2026	B	4

Formula: 'Node1' * 'Node2'

Year	Product	→ MULTIPLICATION Result
2025	A	2 * 2 = 4
2025	B	2 * 0 = 0
2026	A	4 * 1 = 4
2026	B	4 * 4 = 16

Multiplying by a scalar

When one input is a scalar value, that value is applied across all rows of the other input.

Input node: Node1

Year	Value
2025	2
2026	4

Input node: Node2

Value
2

Formula: 'Node1' * 'Node2'

Year	→ MULTIPLICATION Result
2025	2 * 2 = 4
2026	4 * 2 = 8

Related Functions

Function	When to use instead
MULTIPLY	When you want multiplication with explicit validation options and clearer mismatch handling.
DIVISION (/)	When you want the same combined-dimension logic but need to divide instead of multiply.