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IMCOS Function in Excel: Syntax, Examples and Free Practice

By Rinkesh Shah, founder of Cellgrids.

IMCOS is an Excel Engineering function. Returns the cosine of a complex number.

IMCOS syntax

=IMCOS(inumber)

Arguments

When to use IMCOS

A specialized function used in scientific and engineering calculations rather than typical day-to-day business reporting.

Practice IMCOS online, free

Open the live Excel-style spreadsheet and try IMCOS yourself. No Excel install or sign-up needed to start.

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More Engineering functions

Frequently asked questions

What does the IMCOS function do in Excel?

Returns the cosine of a complex number.

What is the syntax of IMCOS in Excel?

The syntax is =IMCOS(inumber). inumber: A complex number in the form "a+bi".

Where can I practice IMCOS online for free?

Open the free live spreadsheet on Cellgrids and try IMCOS yourself. No Excel install is needed and you can start without signing up.

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