Wolfram Function Repository
Instant-use add-on functions for the Wolfram Language
Function Repository Resource:
Find the sum of digits in the positional representation of an integer
ResourceFunction["DigitSum"][n] gives the sum of digits in the base-10 representation of the integer n. | |
ResourceFunction["DigitSum"][n,b] gives the sum of digits in the base-b representation of integer n. |
Compute a digit sum in base 10:
In[1]:= | ![]() |
Out[1]= | ![]() |
Compute another digit sum:
In[2]:= | ![]() |
Out[2]= | ![]() |
Compute a digit sum in another numerical base:
In[3]:= | ![]() |
Out[3]= | ![]() |
Compare this to the output of IntegerDigits:
In[4]:= | ![]() |
Out[4]= | ![]() |
In[5]:= | ![]() |
Out[5]= | ![]() |
DigitSum ignores the sign of its input:
In[6]:= | ![]() |
Out[6]= | ![]() |
The digit sum of 0 is 0 in any base:
In[7]:= | ![]() |
Out[7]= | ![]() |
In[8]:= | ![]() |
Out[8]= | ![]() |
This work is licensed under a Creative Commons Attribution 4.0 International License