sizeof

Storage size of the input in bytes.

Syntax

n = sizeof(A)

Description

Returns the number of bytes used to store A in memory. Useful for memory budgeting on large arrays.

Examples

sizeof(zeros(1000,1000))   % 8000000  (8 bytes per double × 1M elements)
sizeof(int32(0))           % 4

See also

• numel — Total number of elements.
• size — Sizes along all dimensions, or along one specific dimension.