Geoff Hagopian's COD Page

Math Field Days at COD

MFD_FlexF17
mfdGuide2016-1
pidayGuide2014
piday Pics from 2008
MAM2010
MAM

Talks and Papers

MathFest2019

Algorithmic Origami
JointMathematicsMeetingsReport2016
Mathfest2014-report
CMC3_Attendance Report fall2010
The Art and Science of Redistricting
cmc3-talk on Stroustrup
ict_talk on Stroustrup
A_Review_of_the_Time_Magazine_Article
CMC3_report-monterey_2008
Joint Meeting Report 2007
A Line in the Standards
intRo2R
RiemannHypothesis
The Acceleration Agenda
TI_TIPS
TI-progs
TILRGINT

Other

LetsDoMath (the 2011 summer enrichment program)
A Critique of the Office of Affairs Policy Paper
IAStuff
Response To BB Re CCA Letter March 20 2009 (4)
Sabbatical Proposal 2005
Sabbatical Calendar
Geometer's Sketchpad-intro
Earth Science Study
Play_algebra_arcade
ScoopingtheLoopSnooper
BoTstatement - codswallop

On April 12th, the 47th known Mersenne prime, $2^42,643,801-1$, a 12,837,064 digit number was found by Odd Magnar Strindmo from Melhus, Norway! This prime is the second largest known prime number, a "mere" 141,125 digits smaller than the Mersenne prime found last August.
is also prime!
Join the Great Internet Mersenne Prime Search 

dogs

 

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%

 

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Geoff Hagopian
Professor of Mathematics and Computer Science
College of the Desert

MA, Mathematics,University of California at Davis, 1986
BA, Mathematics, University of California at Santa Cruz, 1982

Phone: 760-776-7223
Email: ghagopian@collegeofthedesert.edu

A Random Mathematical Quotation

Newman, James R.
Games are among the most interesting creations of the human mind, and the analysis of their structure is full of adventure and surprises. Unfortunately there is never a lack of mathematicians for the job of transforming delectable ingredients into a dish that tastes like a damp blanket.
In J. R. Newman (ed.) The World of Mathematics, New York: Simon and Schuster, 1956.

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