.
. centre de ressources dilemmes et doutes le visage humain de mathématiques Qui sommes-nous Problème de mois activités de promotion babillard
Centrale des maths - centraledesmaths.uregina.ca
Dilemmes & doutes
« D & D »
. .
topic card  

Sujet:

string

liste de
sujets
. .
nouvelle recherche

15 articles trouvés pour ce sujet.
 
Page
1/1
Strings of letters 2022-04-25
Javar pose la question :
How many different combinations can I make with A 12 selection list but only using A&B

Example:

A,B,A,B,A,B,A,B,A,B,A,B
A,B,B,A,A,B,B,A,A,B,B,A
B,B,A,A,B,A,B,A,B,A,A,B

penny Nom lui répond.
4 digits to unlock a padlock 2020-08-28
Sophie pose la question :
I have forgotten the order in what the numbers go for my padlock! The numbers are, 0125, they don't have any repeats like, 0001, 0002. What are all possible the combinations? Help!
Penny Nom lui répond.
Some strings of 4 digits 2020-06-26
Judy pose la question :
I wrote previously and need more help. I need to generate a list of 4 digit. Numbers using 0-9 with no repetitions
I know that there is a 6 followed by a 2. Order does matter
Thank you in advance for your help.

Penny Nom lui répond.
Strings made from three characters 2019-12-10
Kelley pose la question :
Hi,

I vaguely remember some formula for determining all the possible combinations of a set of numbers (or whatever).

If I have 3 numbers (0 - 2), then I have 0, 1, 2, 00, 01, 02, 10, 11, 12, 20, 21, 22, 000, 001, 002, 010, 011, 012, 020, 021, 022, 100, 101, 102 and so on.

What is the formula for determining all potential results?

Thank you!!

Kelley

Penny Nom lui répond.
Strings of characters 2015-12-28
Ali pose la question :
If I have an app and offer a two, three and four digits name and it can be only number, letters or both?
I want to know how many options will I have for each?
For example
the two digits: aa, 11, a1 or 1a
the three digits: 111, a2a, 222
the four digits: 1111, 2ge3 or 1234
So if I used all the letters and all the numbers but nothing starts with a zero How can I calculate them separately? Or what's the result for each?
Thank you
Ali

Penny Nom lui répond.
6 character strings using 1, 5 and 9 2014-06-15
Kevin pose la question :
How many 6 digit combinations (i.e., 159159) can be made from 3 different numbers (i.e., 1,5, and 9)? The numbers will obviously have to repeat. A link to a calculator that could list all the combinations would be helpful. I've come across these sites: http://textmechanic.com/Permutation-Generator.html, and http://textmechanic.com/Combination-Generator.html , but am not sure how to use them for my specific case. Thanks.
Penny Nom lui répond.
A cable around the Earth 2014-03-13
fikile pose la question :
By how much must an equatorial cable be extended in order that it runs 1meter above the ground?
Penny Nom lui répond.
A string wrapped around three circles 2013-10-19
Jim pose la question :
A recent puzzle ' find the length of a string around 3 touching 1 meter diameter circles ' gave this answer : the string touches 120° (or pi/3 meters) of each circle. Then 3(1+pi/3) = 3+pi meters is the required length. I do not see how it was determined that the string touches 120° or pi/3 meters?
Please explain . Thank-you , Jim

Penny Nom lui répond.
Factor strings 2013-10-14
Jane pose la question :
What's a factor string? I'm confusey in the head.
Penny Nom lui répond.
If the earth was made of a ball of string 2013-09-18
Tammy pose la question :
My 9 year old son asked me a question and I have no idea how to work it out! Please can you help?

If the earth was made of a ball of string and you unravelled the string how long would it be? Assuming the string is 5mm thick.

Penny Nom lui répond.
Four digit "combinations" using 0124 2013-02-27
Ayana pose la question :
What are all the possible four digit combinations using 0124. Please list them for me. Thank you.
Penny Nom lui répond.
A string around the world 2008-08-18
Terry pose la question :
I heard this on T.V. and was wondering if it was true. Place a string around the world, you would need 25,000 miles of string. If you raised the string off of the ground by 1 foot all the way around. How much more string would you need?
Penny Nom lui répond.
A game with some strings 2004-01-22
Trudy pose la question :
A boy holds 6 pieces of strings in his hands with the ends protruding above and below. The top ends are tied together in pairs and then the lower ends are tied together in pairs. What is the probabilty that the pieces of string are all joined in one loop?

What is the probability of obtaining two loops? Can you generalise this to solve the problem for 2n blades of grass?

Andrei Volodin and Penny Nom lui répond.
A rock on a string 2003-10-26
A student pose la question :
a rock on a 4' string is rotated at 80 rpm. what is the linear speed in feet per second? in miles per hour?
Penny Nom lui répond.
The two-digit numbers from 10-99 1998-01-21
Alexis Riddle pose la question :
My name is Alexis. I'm a student in 8th grade and I'm taking Algebra I Honors. My question is: In a string of numbers, two adjacent digits are considered as a two-digit number. For instance, the string 11012 contains the numbers 10, 11, and 12. What is the number of digits in the smallest string that contains all of the two-digit numbers from 10-99? Please help and thank you for any assistance you can give me.
Penny Nom lui répond.
 
Page
1/1

 

 


Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.

CMS
.

 

accueil centre de ressources accueil Société mathématique du Canada l'Université de Regina PIMS