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SpreadJS Overview
Getting Started
JavaScript Frameworks
Best Practices
Features
SpreadJS Designer
SpreadJS Designer Component
Touch Support
Formula Reference
- Formula Overview
- Formula Functions
  - Barcode Functions
  - Compatibility Functions
  - Database Functions
  - Date and Time Functions
  - Engineering Functions
    - BESSELI
    - BESSELJ
    - BESSELK
    - BESSELY
    - BIN2DEC
    - BIN2HEX
    - BIN2OCT
    - BITAND
    - BITLSHIFT
    - BITOR
    - BITRSHIFT
    - BITXOR
    - COMPLEX
    - CONVERT
    - DEC2BIN
    - DEC2HEX
    - DEC2OCT
    - DELTA
    - ERF
    - ERF.PRECISE
    - ERFC
    - ERFC.PRECISE
    - GESTEP
    - HEX2BIN
    - HEX2DEC
    - HEX2OCT
    - IMABS
    - IMAGINARY
    - IMARGUMENT
    - IMCONJUGATE
    - IMCOS
    - IMCOSH
    - IMCOT
    - IMCSC
    - IMCSCH
    - IMDIV
    - IMEXP
    - IMLN
    - IMLOG10
    - IMLOG2
    - IMPOWER
    - IMPRODUCT
    - IMREAL
    - IMSEC
    - IMSECH
    - IMSIN
    - IMSINH
    - IMSQRT
    - IMSUB
    - IMSUM
    - IMTAN
    - OCT2BIN
    - OCT2DEC
    - OCT2HEX
  - Financial Functions
  - Information Functions
  - Logical Functions
  - Lookup and Reference Functions
  - Math and Trigonometric Functions
  - Statistical Functions
  - Sparkline Functions
  - Text Functions
  - Web Functions
  - Other Functions
  - RegEx Functions
Import and Export Reference
Frequently Used Events
API Documentation
Release Notes

IMARGUMENT

This function returns the argument theta, which is an angle expressed in radians.

Syntax

IMARGUMENT(complexnum)

Arguments

The complexnum argument is a complex number for which to return the argument theta.

Remarks

An error is returned if the complexnum argument is not in the form "x+yi" or "x+yj". For more information, refer to Complex Numbers.

Data Types

Accepts number and string data. Returns number data.

Examples

IMARGUMENT("3+5j")