Phone: 776-7223 E-Mail: geofhagop@gmail.com Geoff Hagopian Professor of Mathematics College of the Desert  MA, Mathematics, University of California at Davis, 1986 BA, Mathematics, University of California at Santa Cruz, 1982
Geoff Hagopian's College of the Desert Web Site

There’s an old debate about whether you create mathematics or just discover it. In other words, are the truths already there even if we don’t yet know them?
—Paul Erdös

# Fall 2010 Schedule

Time
Monday
Tuesday
Wednesday
Thursday
8:00 - 9:10
9:10 - 11:00
office (M12)
office (M12)
11:00 - 12:10
12:30 - 1:50
Math 30   Geometry   Section #3398 CSSC 125
Math 30 Geometry   Section #3398 CSSC 125
5:15 - 7:45
Math 5 Trigonometry Section #3328 CSSC 125
Math 5 Trigonometry Section #3328
CSSC 125

Current Interests:

Free Open Source Software and R

Symmetry

Scooping the Loop Snooper

My report on AMS/MAA joint meetings attendance in New Orleans, 2004.
| My report on CMC3 conference in Monterey, December 2008.
Review of Time Magazine article about community colleges

The theme of
Mathematics Awareness Month 2010 is Sports

The theme of
Mathematics Awareness Month 2006
was
Mathematics and Internet Security
Past MAM Themes

Earth Statistics

 Mass (kg) 5.976e+24 Mass (Earth = 1) 1.0000e+00 Equatorial radius (km) 6,378.14 Equatorial radius (Earth = 1) 1.0000e+00 Mean density (gm/cm^3) 5.515 Mean distance from the Sun (km) 149,600,000 Mean distance from the Sun (Earth = 1) 1.0000 Rotational period (days) 0.99727 Rotational period (hours) 23.9345 Orbital period (days) 365.256 Mean orbital velocity (km/sec) 29.79 Orbital eccentricity 0.0167 Tilt of axis (degrees) 23.45 Orbital inclination (degrees) 0.000 Equatorial escape velocity (km/sec) 11.18 Equatorial surface gravity (m/sec^2) 9.78 Visual geometric albedo 0.37 Mean surface temperature 15°C

Atmospheric composition

 Nitrogen 77% Oxygen 21% Other 2%