Table of Contents
This article provides a clear overview of Summary of Technical Functions in Excel, with the main facts, useful context, and practical details organized for easy reading.
1. CONVERT Function
What This Feature Does
The function converts back and forth between measurement units. For example, converting units in weight, mass, length, time, energy.
Syntax
CONVERT (number, from_unit, to_unit) .
Arguments
- number: the value you may need to convert.
- from_unit: The original unit of value you may need to convert.
- to_unit: The unit of measurement you may need to convert to.
Example
Convert (5, g, ozm): Convert 5g to Ounce mass units.
Standard for writing conversion units:




2. BESSELI Function
What This Feature Does
Returns the BESSELI function of the In (x) transform.
Syntax
Syntax: BESSELI (x, n) .
Arguments
- x is the value to calculate the Besseli function.
- n is the order of the function, if n is a decimal number → the function takes the rounding value of n.
Important Notes
- If n function returns the value #NUM!
- x, n must be numeric values if entered incorrectly → #VALUE error message.
Example
BESSELI (2.5,3) → Variable Besseli function In (x) first order at value 1.5 → result = 0.47437.
3. the BESSELJ Function
What This Feature Does
Returns the BESSELJ function of the variable Jn (x).
Syntax
BESSELJ (x, n) .
Arguments
- x is the value to calculate the Besselj function.
- n is the order of the function, if n is a decimal number → the function takes the rounding value of n.
Important Notes
- If n function returns the value #NUM!
- x, n must be numeric values if entered incorrectly → #VALUE error message.
Example
BESSELJ (2.5,3) → The Besselj function transforms first-degree jn (x) at value 1.5 → result = 0.2166.
4. the BESSELK Function
What This Feature Does
Returns the BESSELK function of the Kn (x) transform.
Syntax
BESSELK (x, n) .
Arguments
- x is the value to calculate the Besselk function.
- n is the order of the function, if n is a decimal number → the function takes the rounding value of n.
Important Notes
- If n function returns the value #NUM!
- x, n must be numeric values if entered incorrectly → #VALUE error message.
Example
BESSELK (2.5,3) → Variable Besselk function In (x) first order at value 1.5 → result = 0.268227.
5. BESSELY Function
What This Feature Does
Returns the BESSELY function of the variable Yn (x).
Syntax
BESSELY (x, n) .
Arguments
- x is the value to calculate the Bessely function.
- n is the order of the function, if n is a decimal number → the function takes the rounding value of n.
Important Notes
- If n function returns the value #NUM!
- x, n must be numeric values if entered incorrectly → #VALUE error message.
Example
BESSELY (2.5,3) → The Bessely function transforms Yn (x) first order at the value 1.5 → result = -0.75605.
6. the BIN2DEC Function
What This Feature Does
The function performs conversion of binary numbers to decimal numbers.
Syntax
BIN2DEC (number) .
Arguments
number is the value to convert.
Note: If number is more than 10 characters → function value returns an error! NUM.
7. DEC2BIN Function
What This Feature Does
The function performs conversion of decimal values to numbers in binary.
Syntax
DEC2BIN (number [, places]) .
Arguments
- number is the value to convert, places arbitrary parameters.
- places is the number of characters you may need to use in the return value.
8. the BIN2HEX Function
What This Feature Does
The function performs a number conversion from binary to hexadecimal.
Syntax
BIN2HEX (NUMBER [, PLACE]) .
Arguments
- Number is the binary value you may need to convert.
- Place (the arbitrary value): is the number of characters of the returned result, if omitted Excel, get the minimum number of characters enough to return the result.
Important Notes
- Place is a natural and non-negative numerical value.
- If the value you may need to convert is more than 10 characters → the #NUM!.
- If the conversion value is negative, the function ignores the place parameter and returns the result with 10 characters in hexadecimal.
- If the result has a larger number of characters than the specified in place → error #Num!
- If you enter place as a decimal value, get the integer part of the place.
9. Ham HEX2BIN
What This Feature Does
The function performs conversion of numeric values from hexadecimal to binary.
Syntax
HEX2BIN (number [, place]) .
Arguments
- number is the value you may need to convert.
- place: arbitrary value, specifying the number of characters of the returned result.
Important Notes
- Enter the number value in quotation marks eg HEX2BIN ("F").
10. BIN2OCT Function
What This Feature Does
The function converts binary numbers to octal numbers.
Syntax
BIN2OCT (number [, places]) .
Where: number is the value you may need to convert, place is an arbitrary value that is the number of characters of the returned result.
Note: Notes are similar to the above functions.
11. OCT2BIN Function

What This Feature Does
The function converts numbers from octal to binary.
Syntax
OCT2BIN (number [, places]) .
Arguments
- number is the value to be converted.
- places: number of characters of the returned result, arbitrary parameters, if omitted Excel, the minimum value is sufficient to denote the result.
Note: Notes are similar to the above conversion functions.
12. Ham COMPLEX
What This Feature Does
The function converts real and imaginary factors into complex numbers of the form x + yi or x + ỵ.
Syntax
COMPLEX (real_num, i_num [, suffix] .
Arguments
- real_num: real coefficient is a numerical value.
- i_num: The imaginary coefficient is a numerical value.
- suffix: suffix of virtual coefficient of complex number if ignoring default is i, if not put in quotation marks.
Note: If 1 of 2 real_num and i_num values are not numeric → #Value error. Or, in case of input suffix outside the characters i and j, the error function #Value.
13. the DEC2OCT Function
What This Feature Does
Convert decimal numbers to octal numbers.
Syntax
DEC2OCT (number, places) .
Arguments
- number: is the decimal number to be converted to octal.
- places: is the number of characters of the returned result. If you enter places, the return result contains the leading zero if the result has fewer characters than places.
Important Notes
- If number> 536,870,911 or number <-536870912, or places exceeds 40 characters or places the #NUM!
- If number, places are not numbers → the error message #VALUE!
14. the DELTA Function
What This Feature Does
Check if the 2 numbers are equal or not.
Syntax
DELTA (number 1, number 2) .
Arguments
- number1: is the 1 comparison value.
- number2: is the second comparison value.
If two values are equal → the value of the function returns 1, otherwise it returns 0.
Note: 2 values must be numeric values, if the error value type is entered in the #VALUE error function.
15. GESTEP Function
What This Feature Does
How the function is used to compare 2 values.
Syntax
GETSTEP (number, step) .
Arguments
- number is the value to compare.
- step: value to compare.
If number> step → GETSTEP returns 1, otherwise number
Important Notes
- If you do not enter the test value, step by step the function automatically understands the value of step = 0.
- The two parameters of the function must be a numeric value otherwise the #VALUE error function will be displayed.
16. the IMAGINARY Function
What This Feature Does
The function returns the imaginary coefficient of a real number in a complex coefficient.
Syntax
IMAGINARY (number) .
Arguments
- number is a complex number to get a virtual coefficient.
17. IMDIV Function
What This Feature Does
The function performs the quotient of 2 complex numbers.
Syntax
IMDIV (inumber1, inumber2) .
Arguments
- inumber1 is the first complex number to be calculated.
- inumber2 is the second complex number to be calculated.
18. IMLN Function
What This Feature Does
The function performs the natural logarithm of a complex number.
Syntax
IMLN (inumber) .
Arguments
- inumber is a complex number that needs to be calculated naturally.
19. the IMLOG2 Function
What This Feature Does
The function performs base 2 logarithms of a complex number.
Syntax
IMLOG2 (inumber) .
Arguments
- inumber is a complex number to be calculated base 2's logarithm.
20. IMPRODUCT Function
What This Feature Does
The function performs the product of the product of 2 complex numbers.
Syntax
IMPRODUCT (inumber1, inumber2, inumber3,.) .
Arguments
- inumber are complex numbers to calculate.
Note: Complex numbers entered in quotation marks.
For example, IMPRODUCT ("3-2i", "24-9i").
21. IMSIN Function
What This Feature Does
The function performs calculating the sine value of a complex number.
Syntax
IMSIN (number) .
Arguments
- number is a complex number to be calculated.
22. IMSUB Function
What This Feature Does
The function performs the difference of two complex numbers.
Syntax
IMSUB (inumber1, inumber2) .
Arguments
- inumber1 is the first complex number.
- inumber 2 is the second complex number.
23. the IMABS Function
What This Feature Does
Calculate the absolute value of a complex number.
Syntax
IMABS (inumber) .
Arguments
- inumber is a complex number that needs absolute value calculation.
24. IMEXP Function
What This Feature Does
The function performs exponentiation e of complex numbers.
Syntax
IMEXP (inumber) .
Arguments
- inumber is a complex number whose base power is to be calculated e.
25. IMCOS Function
What This Feature Does
Perform the cosine calculation of a complex number.
Syntax
IMCOS (inumber) .
Arguments
- inumber is a complex number for cosine.
Note: The value of entering a complex number is enclosed in quotation marks.
26. IMLOG10 Function
What This Feature Does
The function performs base 10 logarithms of a complex number.
Syntax
IMLOG10 (inumber) .
Arguments
- inumber is a complex number to be calculated base 10 logarithms.
27. IMPOWER Function
What This Feature Does
The function performs exponentiation of a complex number.
Syntax
IMPOWER (inumber, number) .
Arguments
- number is a complex number for exponentiation, number is exponent.
28. the Function IMREAL
What This Feature Does
The function that performs the calculation returns the real coefficient of the complex number.
Syntax
IMREAL (inumber) .
Arguments
- inumber is a complex number to find the real coefficient.
Note: Enter a complex numeric value in quotation marks.
Example
IMREAL ("15-6i").
29. IMSQRT
What This Feature Does
The function performs the square root of a complex number.
Syntax
IMSQRT (inumber) .
Arguments
- inumber is a complex numerical value to calculate square root.
30. IMSUM Function
What This Feature Does
The function performs calculations and returns the total value of 2 complex numbers.
Syntax
IMSUM (inumber1, inumber2, inumber3,.) .
Arguments
- inumber is complex numbers to be calculated with complex numbers to calculate up to 29 numbers.
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