The modulo operation x y returns the remainder if x is divided by y. Before moving to example let s first create an algorithm to find first and last digit of a number.
I came up with this method which worked pretty well for me.
How to get the first digit of a number. 5 the last digit of 5679 is. Logic to find first digit of a number. First is the number and second is the number of digits to be returned from the first argument number but the restriction was not to convert it to the string.
Let s see some examples. Use either while loop and division operator or log and pow methods of. And the poor old number 9 is the first digit only 5 of the time.
The story is that a man called simon newcomb noticed a book of logarithms was very worn at the start but not at the end. C program to find first digit of a number. Each row will contain odd numbers of number.
Frank benford discovered that in many cases the number 1 is the first digit about 30 of the time. To find first digit of a number we divide the given number by 10 until number is greater than 10. The last cout prints the last digit of the number i e.
Find the first and last digit of a number. A man called dr. To find the first digit we are removing all digits of the number one by one from right to left.
Contribute your code and comments through disqus. Take a number from the user. Input a number from user.
Step by step description to find first digit of a number. Write a program in c to display such a pattern for n number of rows using number. And then it is going to find the first digit of the user entered value.
5679 the first digit of 5679 is. Summary returns first part of number. This first digit in a number program is the same as the first example.
Create two variables firstdigit and lastdigit and initialize them by 0. Finding first digit of any number is little expensive than last digit. Input any number.
Enter a number 324 sum of first last digit 7. Python program to return first digit of a number using functions.