Who knows? Maybe someone here is interested in this...
-------- Original Message -------- Subject: presentation of the work of Fotis Georgatos; the AMSTEL institute From: gef@ceid.upatras.gr Date: Tue, June 18, 2002 1:23 pm To: ams@science.uva.nl Dear colleagues, You are cordially invited to the defence of the Masters thesis entitled: "How applicable is Python as first computer language for teaching programming in a pre-university educational environment, from a teacher's point of view?" Next Tuesday, June 25, from 14.00 till 15.30 Fotis Georgatos will present his work at the Studio Classroom, AMSTEL Institute. Fotis Georgatos is following the International Masters program "Mathematics and Science Education" organized by the AMSTEL Institute. In his case the Masters thesis is aimed at teaching a computer language, in particular Python, and what are the teachers' opinion over that. The presentation includes a discussion on * research subject setting * background work * chosen methodology * results and * conclusions Hopefully the critique over the findings of this research will be followed by a discussion on what the future concerns in teaching programming could be like. Please, do forward this announcement within your departments to possibly interested colleagues that should be aware of it. You may find the Research Report on the project's website: http://amstel.science.uva.nl/~fotisg/python/ Kind regards, Fotis Georgatos Dr. Ton Ellermeijer AMSTEL institute, Faculty of Science Universiteit van Amsterdam Kruislaan 404 NL - 1098 SM Amsterdam The Netherlands tel ++ 31 20 5257963 fax ++ 31 20 5255866
Darn! So close. I will be in the Netherlands that day -- but on my way to EuroPython, so I still can't make it. :-( I'd like to hear the outcome. Will you put any artifacts on the web? Please point us to them here! --Guido van Rossum (home page: http://www.python.org/~guido/)
From math.forum math-teach:
[6] Java bigInteger class: http://world.std.com/~reinhold/BigNumCalc.html http://java.sun.com/products/jdk/1.1/docs/api/java.math.BigInteger.html (note: many computer languages have built-in big integer capabilities, including Python, Scheme and J). Although Java is useful to learn, I advocate starting with an interpreted language with an interactive shell, moving to Java and/or C++ etc. from there. Python is a useful starting place, as Jython (Python implemented in Java) gives you access to the Java class hierarchy (more on that soon). Full text: http://www.mathforum.com/epigone/math-teach/swoystexzher ============================ Jython 2.1 on java1.4.0 (JIT: null) Type "copyright", "credits" or "license" for more information.
from java.util import Random from java.math import BigInteger def getprime(bits=1024,certainty=100): ... rnd = Random() ... return BigInteger(bits,certainty,rnd) ... getprime() 1067722720141438416936329289263562925035919827052678321832681866990063551831478848783821605522120173 6810758438542124774962778293181664954075068528879431188671218617821416729983420767730160839601649102 7878857263718814234305416020293364487398387002390977394929459089980299322531800903440856855529607114 180383003
getprime() 1635022550460085571394950585678011702182813484094648009782139177599579586182605830422264786759942806 6019544571783674607592559827973071614319273868858895160925422316661623514842803442153354380766931493 9242514490725373277904794746971911859355192254290778916168701651664990099347432156336759947584206104 118948493
getprime() 15706222468499394013126985176537386112522449249758855356092634960514837608365322425798261607230541327 89581600957239025130461151581105193875191042660095633244943545323662018745303479566186530171082550165 31711741827949634958045834621953209681970713938226207782244603038171287845793911833631631265924892410 373287
bigint = getprime() type(bigint) <jclass org.python.core.PyJavaInstance at 10464309> bigint.floatValue() Infinity bigint.isProbablePrime(99) 1 bigint.isProbablePrime(100) 1
bigint.pow(2) 214793268321532821588032256725613858449483467767599346997237912568050073085731530361161226 725695449134622769743890477430905392637048124102454975861838931014229255152730779852520534 254378200892173836345052779200400122433349130797672576059665755720489272089893954150124169 523901608928637574073289079575702579235625324740500238669587719886835908838641130320542845 578194705858533582910376157235151754487862211543516033122087730609216769159405204723344850 797077730939061275722013680290323910220972076841881318348356037709865572730712481257166680 40788211105810341358163047403420965747220457580382148416014744960379763788929
c = bigint.toString() c '146558271114779742269301322602100529404339825949953501568329885567000695069308802534706613 9041468129102794812323684613120434312882417587175479128356285499832976028096600983849374227 9122680205473294626276722594258350825671715818394020427154688565234068066088213224883990455 9424077012873102161456076093117316673' type(c) <jclass org.python.core.PyString at 12556818>
def getpubkey(): ... return getprime().multiply(getprime()) ... getpubkey() 127133456493088279995776882752806725520417953316178756866731817439300154920002336273874812973 932018769546144576391745529354677995406208924278599998857560993300626991338228551502052810615 810760467669950222620774460378427571545522173710439024339715394303867361788519087423082692724 751114134332697560062232157681946561523101996375783766149719220687611858586527051123811845006 341374879830653553796763328516750433647605584361271831289770121536089641369031180740570946982 659204264071753670488187301082391699009142364892039468587514022324815769559211318637652948317 84031938596412373659538624251864114757452178888891855688569
participants (3)
-
fotisg＠science.uva.nl -
Guido van Rossum -
Kirby Urner