Welcome to the Math 705 (Modern Plance Geometry) home page. Please click on any of the following to see:

Math 705 Section 21 (Tues. Thurs. 6:30-9:30 p.m.) syllabus    (Click here to obtain pdf format)

Geogebra download site:  http://www.geogebra.org/cms/

A geogebra file that illustrates the Euler Line Theorem  

To use this, right click on the link and save to your computer's hard drive.  Then, navigate to the directory where you saved it and double click on it).

Octave installation instructions

Octave tutorials: How to get started  (in pdf format); this consists of extracts from Introduction to Octave (in pdf format)
Note:  To view or print out pdf files, you may need the Adobe Acrobat reader, which you may download for free if you don't have it yet by clicking  here.

A spreadsheet that can be used with Excel to pivot matrices  (in xls format)  (I recommend right-clicking on this link and saving it to your computer's hard drive.  Then, navigate to the directory where you saved it and double click on ExcelPivot.xls).  If this spreadsheet won't work on your computer, click here for instructions that might help you fix the problem.

A Linear Algebra toolkit that can perform row operations on a matrix and obtain its reduced row echelon form

**Current and future Master's level Math courses offered at Salem State University

Program "Rowop" with prompts to perform elementary row operations on a matrix [A] on TI calculators:
TI 82 binary version (397 bytes);  TI 82 text listing of program
TI 83 binary version (396 bytes);  TI 83 text listing of program
TI 85 binary version (522 bytes);  TI 85 text listing of program

Note:  In the text listings, \->\ represents the STO-> key in the left column.
Note: To use the binary version of the program, you will first need to download it.  To download it, right click the appropriate link and choose
"Save target as..." with Internet Explorer or "Save link as..." with Netscape.   The downloaded file should have the indicated length.  With some versions of Netscape, it may be corrupted and have a different length. In that case, please use Internet Explorer or click here to find another link that might enable you to download this file properly. If you have problems following these instructions, please send e-mail to arosenthal@salemstate.edu).

After being downloaded,  the binary version of the program may be loaded directly into the TI calculator of the corresponding type, IF you have a "TI-GRAPH LINK" cable to connect your PC and the calculator and you use the appropriate "TI-GRAPH LINK" software available for free download at http://education.ti.com/educationportal/sites/US/sectionHome/download.html.   There are "TI-GRAPH LINK" cables connected to several of the computers in the Math Lab which you may use in the Math Lab.  The "TI-GRAPH LINK" software is already installed on some of the computers in the Math Lab.  If you have trouble finding it, please ask for help.

A script (rowop.m) which you may use with MATLAB (in the Math Lab) to pivot matrices.  (This may be useful when performing Gaussian elimination or when using the simplex method).

Click here for instructions on how to download and use the script rowop.m, using the previous link.

A spreadsheet, rowop.xls, that will perform Gaussian elimination on most matrices up to 3x4
(To use this, you might need to (1) save rowop.xls to your hard disk, by right clicking and using "Save target as" with Internet Explorer or using "Save link target as" with Netscape and then (2) double click on rowop.xls.  After the first time, only step (2) will need to be done.) 

Professor Rosenthal's home page

My favorite Web sites   (including a map of Salem State University and a link to MBTA schedules for routes serving Salem)

Home page for  Mathematics at Salem State University    or    Salem State University   or   ***Graduate Math programs at Salem State University    or   Graduate programs in general at Salem State University

Specific Information on Master of Science (MS) in Mathematics or Master of Arts in Teaching (MAT) Mathematics programs at Salem State University

To send me e-mail, click on arosenthal@salemstate.edu