2024 Get the first digit of a number python

Get the first digit of a number python

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August undefined, 2024

WebDec 16, 2016 · int number = 534; int firstDigit = number/100; ( / ) operator in java divide the numbers without considering the reminder so when we divide 534 by 100 , it gives us (5) . but if you want to get the last number , you can use (%) operator . int lastDigit = number%10; which gives us the reminder of the division , so 534%10 , will yield the … WebTo get the second digit, we divide by ten and then apply the operator %. After that, we get the third digit dividing by ten, two times, and then use the operator %. To get the n-th digit, we divide n-1 times by ten and then use the modulus operator (%). That is …

First digit of number in python - Decode School

WebAug 11, 2024 · The downside of the other answers is using [0] to select the first character, but as noted, this breaks on the empty string. Using the following circumvents this problem, and, in my opinion, gives the prettiest and most readable syntax of the options we have. It also does not import/bother with regex either): WebJan 7, 2015 · t = df.checkVar.dropna ().astype (str).str [0].astype (int) #get a series of the first digits of non-nan numbers df ['newVar'] = ( (t > 5) (t < 2)).astype (int) df.newVar = df.newVar.fillna (0) this might be slightly better, unsure, but … hoteles en jardin antioquia kantarrana

python - How to extract the first 2 digits of all numbers in a …

WebDec 16, 2013 · 3 Answers Sorted by: 3 Index it: >>> mystr = "123" >>> mystr [1] '2' >>> mystr [-2] '2' >>> If it is a number, then you need to convert it to a string first with str: >>> myint = 123 >>> str (myint) [1] '2' >>> str (myint) [-2] '2' >>> Share Improve this answer Follow edited Dec 16, 2013 at 17:50 answered Dec 16, 2013 at 17:44 user2555451 WebOct 17, 2024 · As the other solutions say, to find the index of the first digit in the string we can use regular expressions: >>> s = 'xdtwkeltjwlkejt7wthwk89lk' >>> match = re.search (r'\d', s) >>> print match.start () if match else 'No digits found' 15 … hoteles en ainsa

How to take the nth digit of a number in python - Stack …

Regex to get first number in string with other characters

WebMy first step was to extract the numbers from the string. Headline = "redirectDetail ('27184','2 -New-York-Explorer-Pass')" print (re.findall ('\d+', headline )) Output is ['27184', '2'] In this case it returned me two numbers but I only want to have the first one "27184". Hence, I tried with the following code: WebTo get the first digit of a number: Convert the number to a string using the str() Function. Use the square brackets syntax [] to access the first character of a string. Convert the … hoteles en jala nayaritWebAug 28, 2024 · Convert to a string, reverse the string, and then take the index of the string and convert the string back into an integer. This works: def nth_digit (digit, n): digit = str (digit) return int (digit [::-1] [n]) Let me know if this works for you! Share Follow answered Aug 28, 2024 at 16:13 CodeRocks 625 4 9 24 Add a comment -2 hoteles en jalpatagua jutiapa

"WebSep 22, 2016 · First treat the number like a string number = 9876543210 number = str (number) Then to get the first digit: number [0] The fourth digit: number [3] EDIT: … " - Get the first digit of a number python

Get the first digit of a number python

python - Sum the digits of a number - Stack Overflow

WebSep 1, 2010 · Python code using your approach: def digits (n): ds = [] while n > 0: ds.append (n % 10) n /= 10 ds.reverse () return ds Using convertation to string: def digits (n): return map (int, str (n)) Share Improve this answer Follow edited Dec 19, 2013 at 2:05 smac89 37.8k 15 127 173 answered Sep 1, 2010 at 0:15 Vadim Shender 6,683 1 15 10 WebYou use the modulo operator: while (score) { printf ("%d\n", score % 10); score /= 10; } Note that this will give you the digits in reverse order (i.e. least significant digit first). If you want the most significant digit first, you'll have to store the digits in an array, then read them out in reverse order. Share Improve this answer

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WebSep 27, 2024 · how to get each digit of a number Code Example September 27, 2024 6:18 AM / Python how to get each digit of a number Kiran int number; // = some int while (number > 0) { print ( number % 10); number = number / 10; } View another examples Add Own solution Log in, to leave a comment 4.5 2 Lombard 130 points WebNov 5, 2024 · answered Nov 5, 2024 at 20:09. The_spider. 1,072 1 7 17. Add a comment. 0. >>> n = '9876' >>> n [1:] '876'. Convert the number to a string if its not alrrady and then just slice the string as above to exclude the first character. Note that you have to assign this value to n to actually change the value of n; n = n [1:] Share.

WebFeb 11, 2024 · The easiest way to get the first digit of a number in Python is converting the number to a string variable, and then access the first element of that string. Below is … WebThe logic is first to convert the given value to a string and then convert it into the list to call the last digit by calling the -1 index. After that, convert it into an integer to wrap it up. val is a variable that represents any integer.

WebMar 31, 2024 · Python: get first number of every float in a list Ask Question Asked 6 years ago Modified 2 years, 6 months ago Viewed 5k times 1 python beginner here. How can I convert list = [2.4, 4.8532, 5.43253, 55.3838] to list = [2, 4, 5, 5] Thanks. python list Share Improve this question Follow edited Sep 20, 2024 at 1:10 asked Mar 31, 2024 at 1:44 21rw WebIf you want to keep summing the digits until you get a single-digit number (one of my favorite characteristics of numbers divisible by 9) you can do: def digital_root(n): x = sum(int(digit) for digit in str(n)) if x < 10: return x else: return digital_root(x) Which actually turns out to be pretty fast itself...

WebMay 7, 2024 · You can get the decimal part of a number as follows: >> num = 42.56 >> decimal_part = num - int (num) >> decimal_part = 0.56 This post explores a similar question. Share Follow edited May 23, 2024 at 12:18 Community Bot 1 1 answered May 7, 2024 at 7:46 xssChauhan 2,678 2 24 36 Add a comment 0

WebFeb 3, 2010 · All math.log10 solutions will give you problems. math.log10 is fast but gives problem when your number is greater than 999999999999997. This is because the float have too many .9s, causing the result to round up. hoteles en honolulu hawaiiWebJun 14, 2024 · Python code to print the first digit of a number using typecast Code: num = int(input("Enter number: ")) num_str = str(num) print(num_str[0]) Output: Enter number: 34501 3 Python code to print the first digit of a number using iteration Code: num = int(input("Enter number: ")) first_digit_of_number = num while (first_digit_of_number … hoteles en juana koslayWebJul 1, 2024 · If all your numbers have 4 digits, you can simply use df ['F'] = df ['D'] // 100. For larger dataframes, these numeric methods will be more efficient than converting integers … hoteles en jijonaWebJan 15, 2024 · This would give a string. To get an int, just wrap with int: Simpler way to extract last two digits of the number (less efficient) is to convert the number to str and slice the last two digits of the number. For example: # sample function def get_last_digits (num, last_digits_count=2): return int (str (num) [-last_digits_count:]) # ^ convert ... hoteles en jojutla morelosWebFeb 11, 2024 · The easiest way to get the first digit of a number in Python is converting the number to a string variable, and then access the first element of that string. Below is a Python function for you to be able to extract the first digit of a number in your Python code. def getFirstDigit(num): return str(num)[0] print(getFirstDigit(100)) hoteles en jaumave tamaulipasWebOct 20, 2011 · public static string GetFirstNumber (this string source) { if (string.IsNullOrEmpty (source) == false) { // take non digits from string start string notNumber = new string (source.TakeWhile (c => Char.IsDigit (c) == false).ToArray ()); if (string.IsNullOrEmpty (notNumber) == false) { //replace non digit chars from string start … hoteles en koh taoWebDec 10, 2024 · To find first digit of a number we divide the given number by 10 until number is greater than 10. At the end we are left with the … hoteles en jujuy