Syntax

IMARGUMENT(number)

Arguments

The printed syntax lists 1 argument(s), in order:

  • number

“optional” marks an argument Google prints in square brackets; “repeatable” marks one Google prints with “…”.

Description from Google Docs Editors Help

“The IMARGUMENT function returns the angle (also known as the argument or \theta) of the given complex number in radians.”

Google’s help article for IMARGUMENT →

Source: Google Docs Editors Help, “Google Sheets function list” (support.google.com/docs/table/25273), record record 48 of 516, data fetched 28 September 2026. Data month: September 2026.