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Engineering function

IMTAN

Returns the tangent of a complex number.

Rarely usedDifficulty 1500 · AdvancedUsage rank #502 of 520
Practice · 2 questions →

When to use it

The tangent of a complex number.

The shape of it

Syntax
=IMTAN(inumber)

Worked examples

  • Typical

    =IMTAN("4+3i") → 0.00490825806749606+1.00070953606723i

    A typical result.

  • Zero

    =IMTAN("0") → 0

    At zero.

  • Pure imaginary

    =IMTAN("i") → 0.761594155955765i

    tan(i) is i tanh(1).

Worth knowing

  • IMSIN/IMCOS.
  • Introduced in Excel 2013.
  • Result is text.

Where it goes wrong

  • #NUM! where cosine is zero.
  • #NAME? in Excel 2010 and earlier.

Related

CONVERTBIN2DECDEC2BINHEX2DECDEC2HEXDELTA

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