(136) since Gauss Jordan method uses backward elimination step. Solution of linear equations and performance analysis on desktop ... by Sridhar, K.; Abirami, B.; Rajaraman, A.; Sivaramakrishnan, T.R. / International Journal of Applied Engineering Research.
Although the IRS will begin accepting both electronic and paper tax returns Jan. 29, paper returns will begin processing later in mid-February as system updates continue. The IRS strongly encourages people to file their tax returns electronically for faster refunds. The IRS set the Jan. 29 opening date to ensure the security and readiness of key tax processing systems in advance of the opening and to assess the potential impact of tax legislation on 2017 tax returns.
The IRS will begin accepting electronically filed tax returns on that day and processing paper returns that have been mailed in. So if you mail in your tax return the first week in January, it will just sit in the queue until January 29 arrives.