# Engineering functions (reference)

Click one of the links in the following list to see detailed help about the function.

Function Description
BESSELI function Returns the modified Bessel function In(x)
BESSELJ function Returns the Bessel function Jn(x)
BESSELK function Returns the modified Bessel function Kn(x)
BESSELY function Returns the Bessel function Yn(x)
BIN2DEC function Converts a binary number to decimal
BIN2HEX function Converts a binary number to hexadecimal
BIN2OCT function Converts a binary number to octal
COMPLEX function Converts real and imaginary coefficients into a complex number
CONVERT function Converts a number from one measurement system to another
DEC2BIN function Converts a decimal number to binary
DEC2HEX function Converts a decimal number to hexadecimal
DEC2OCT function Converts a decimal number to octal
DELTA function Tests whether two values are equal
ERF function Returns the error function
ERF.PRECISE function Returns the error function
ERFC function Returns the complementary error function
ERFC.PRECISE function Returns the complementary ERF function integrated between x and infinity
GESTEP function Tests whether a number is greater than a threshold value
HEX2BIN function Converts a hexadecimal number to binary
HEX2DEC function Converts a hexadecimal number to decimal
HEX2OCT function Converts a hexadecimal number to octal
IMABS function Returns the absolute value (modulus) of a complex number
IMAGINARY function Returns the imaginary coefficient of a complex number
IMARGUMENT function Returns the argument theta, an angle expressed in radians
IMCONJUGATE function Returns the complex conjugate of a complex number
IMCOS function Returns the cosine of a complex number
IMDIV function Returns the quotient of two complex numbers
IMEXP function Returns the exponential of a complex number
IMLN function Returns the natural logarithm of a complex number
IMLOG10 function Returns the base-10 logarithm of a complex number
IMLOG2 function Returns the base-2 logarithm of a complex number
IMPOWER function Returns a complex number raised to an integer power
IMPRODUCT function Returns the product of from 2 to 255 complex numbers
IMREAL function Returns the real coefficient of a complex number
IMSIN function Returns the sine of a complex number
IMSQRT function Returns the square root of a complex number
IMSUB function Returns the difference between two complex numbers
IMSUM function Returns the sum of complex numbers
OCT2BIN function Converts an octal number to binary
OCT2DEC function Converts an octal number to decimal
OCT2HEX function Converts an octal number to hexadecimal

Applies to:
Excel 2010, Excel Web App, SharePoint Online for enterprises, SharePoint Online for professionals and small businesses