Recurrence Relation First Five Terms

Recurrence Relation First Five Terms

Currently in my discrete math class we are working on Recurrence Relations and sequences. Now there are similar problems to mine on here but I could not find what I was looking for. My teacher for this class just plain cannot teach and was hoping someone could help explain this to me. The problem I have is to find the first five terms of this sequence: a_n3a_n-1 - 1; with a_1 1 Then I have to find an explicit or closed definition for this sequence If anyone could please offer up some help it would truly be appreciated.

a_23a_131a_1-30 a_333a_1-1-19a_1-432a_1-3031 a_439a_1-4-127a_1-1333a_1-303132 and so forth. Since a_11, we get a_n3n-1-sum_k0n-23k

Constructing the first terms of the sequence as suggested in the comments you can also arrive at a closed expression. As example, from: a_43a_3-133a_2-1-1333a_1-1-1-1333cdot 1-1-1-1332-3-1-133-32-31-1 it is suggested that, for n1, we have: a_n3n-1-sum_k0n-23k and you can verify that this result satisfies the given recursive definition.

Комментарии

Отправить комментарий

Популярные сообщения из этого блога

Skipping acquire of configured file 'contrib/binary-i386/Packages' as repository … doesn't support architecture 'i386'

Skipping acquire of configured file 'contrib/binary-i386/Packages' as repository … doesn't support architecture 'i386' I installed Ubuntu 18.04 and then while installing Virtualbox i get the i386 error message after I did: sudo apt-get update Get:1 http:nl.archive.ubuntu.comubuntu bionic InRelease 242 kB Hit:2 http:security.ubuntu.comubuntu bionic-security InRelease Hit:3 http:ppa.launchpad.netdanielrichter2007grub-customizerubuntu bionic InRelease Hit:4 http:nl.archive.ubuntu.comubuntu bionic-updates InRelease Hit:5 http:nl.archive.ubuntu.comubuntu bionic-backports InRelease Get:6 http:download.virtualbox.orgvirtualboxdebian bionic InRelease 4429 B Get:7 http:download.virtualbox.orgvirtualboxdebian bioniccontrib amd64 Packages 1426 B Fetched 248 kB in 1s 209 kBs Reading package lists... Done N: Skipping acquire of configured file contribbinary-i386Packages as repository http:download.virtualbox.orgvirtualboxdebian bionic InRelease doesnt support architecture i386 ...
Далее...

Connection string for MariaDB using ODBC

Connection string for MariaDB using ODBC What is the connection string for using MariaDB with ODBC Im guessing its something like DRIVERMariaDB ODBC 5.1 Driver; SERVERLOCALHOST; PORT3306; DATABASEDatabaseName; UIDroot; PASSWORDpassword;OPTION3; Connection strings seems to show strings for MySQL but not MariaDB. MariaDB seems to have a lot of connection strings for Access, SQL Lite, excel, etc ... What have I missed Although this is late answer, but MariaDB have that documented here SQLWCHAR ConnStr LDriverMariaDB ODBC 2.0 Driver;Serverlocalhost;UIDodbc_user;PWDodbc_pw;DBodbc_test;Port3306;
Далее...

Celery like system based on django channels

Celery like system based on django channels According to the docs of django channels: http:channels.readthedocs.ioenlatestconcepts.htmlhighlightcelerynext-steps One thing channels do not do, however, is guarantee delivery. If you need certainty that tasks will complete, use a system designed for this with retries and persistence e.g. Celery, or alternatively make a management command that checks for completion and re-submits a message to the channel if nothing is completed rolling your own retry logic, essentially. I worked with celery some years ago. Yes, it is great, it is big, it is too much. I would like to avoid it. I am searching a simple tasks queue with guarantee delivery and a re-submission on failure. An other alternative would be python-rq. But this has other disadvantages like using pickle data format instead of json. A friend gave me an advice: https:github.comfurious-lukedjango-cq Looks good. From the docs An attempt to implement a distributed task queue ...
Далее...