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Conference rusure::math

Title:Mathematics at DEC
Moderator:RUSURE::EDP
Created:Mon Feb 03 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2083
Total number of notes:14613

201.0. "64 = 65 ?!..." by PRSIS4::DTL () Tue Jan 01 1985 17:31

 !<---5---->!<-3-->!              !<---5---->!<------8------->!            
-+----------+------+-            -+----------+----------------+-
 !          !~     !              !          !   C        . ~ !
 !    A     ! .  C !3             !     A    !      .  ~      !
5!          !      !             5!          !.  ~ !          !
 !        . +  ~   +-             !      . ~       !    B     !
 !  .  ~    !   .  !              ! .  ~       D   !          !
-+          !      !             -+----------------+----------+-
 !          !    ~ !5             !<-------8------>!<---5---->!
3!    B     ! D    !
 !          !     ~! 
-+----------+------+-         [please draw those figures on a paper]


 surface A+B+C+D =                       surface A+B+C+D =         +----+
                                                                   !why?!
 (5+3)*(5+3) = 64                        (5)*(5+8) = 65            +----+
T.RTitleUserPersonal
Name
DateLines
201.1TAV02::NITSANWed Jan 02 1985 07:5116
 !<---5---->!<-3-->!              !<---5---->!<------8------->!
-+----------+------+-            -+----------+----------------+-
 !          !~     !              !          !   C        . ~ !
 !    A    3! .  C !3             !     A   3!      .  ~      !
5!          !      !             5!          !.  ~ !          !
 !        . +  ~   +-             !      . ~ |    3!    B     !
 !  .  ~    !   .  !              ! .  ~  d  |  D  !          !
-+          !      !             -+----------------+----------+-
 !          !    ~ !5             !<-------8------>!<---5---->!
3!    B     ! D    !
 !          !     ~!
-+----------+------+-

                                   Triangle d is 5:2 while triangle D
                                   is 8:3, but 5/2 is not 8/3, so the
                                   diagonal is not a straight line...
201.2SPRITE::OSMANThu Jan 03 1985 17:1811
For any of you folks on the VAXstation, I've got a nice representation
for these triangles.  Try:

	$ copy AMBER::VSTA$DEMO:TRIANGLE.EXE *
	$ RUN TRIANGLE

It draws and labels pretty pictures for the triangles.  And the diagonals
ARE straight lines !!!

p.s.	If you have any trouble getting this, please let me know.

201.3PRSIS4::DTLFri Jan 04 1985 04:065
re: .1
	congrat' !
re: .2
	Thanks.
Didier
201.4WARLRD::JELICHMon Jan 07 1985 12:533
Are you on a V4.0 or V3.7 system?  Executables are no good from 4.0 to 3.7.

Beth