IMTAN function

The IMTAN function returns the tangent of the given complex number. For example, a given complex number "x+yi" returns "tan(x+yi)."

Parts of an IMTAN formula


Part Description Notes
number The complex number for which you want the tangent. This can be either the result of the COMPLEX function, a real number (which will be interpreted as a complex number with imaginary part equal to 0), or a string in the format "x+yi" where x and y are numeric.

Sample formulas





The IMTAN function returns an error if the given number isn’t a valid complex number or if the tangent function is undefined for the given number.


  A B
1 Formula Result
2 =IMTAN(COMPLEX(4, 3)) 0.00490825806749606+1.00070953606723i
3 =IMTAN(0.213) 0.216280749620508
4 =IMTAN("2-2i") -0.0283929528682323-1.02383559457047i

Related functions

  • COMPLEX: The COMPLEX function creates a complex number, given real and imaginary coefficients.
  • IMSIN: The IMSIN function returns the sine of the given complex number.
  • IMCOS: The IMCOS function returns the cosine of the given complex number.
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