Unit and Vector

Unit and Vector - Messages

#1 Posted: 1/17/2021 8:38:11 AM
philippe dalet

philippe dalet

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File not found.File not found.Hello
Happy new year for everyone.




I have detected a little problem (bug ?) about zero and the units .

example1:
v10=10m/s
v12=10m/s
dt=10ms
a11=(V12-V10)/dt=0 NO UNIT displayed


example2:
(see file joined):
a vector v with units m/s
an expression
Ec=1/2.m.v^2 gives a value
Ec=1/2.m.v gives a vector

Thanks a lot
Ph.D
ex3 corr.sm (9 KiB) downloaded 24 time(s).
#2 Posted: 1/17/2021 10:38:33 AM
Fridel Selitsky

Fridel Selitsky

520 likes in 451 posts.

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Tthere is a typo in the energy formula. Written V in instead of V^2
ex3 corr1.sm (13 KiB) downloaded 30 time(s).
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pdalet 1/17/2021 11:10:00 AM
#3 Posted: 1/17/2021 11:01:12 AM
Jean Giraud

Jean Giraud

983 likes in 6866 posts.

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Wrote

I have detected a little problem (bug ?) about zero and the units


Units don't match. Maths are unit-less. The units system sub-processes.
Best procedure is start/construct the project sterilized of units,
or match units at final.


ex3 corr.sm (12 KiB) downloaded 30 time(s).
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pdalet 1/17/2021 11:14:00 AM
#4 Posted: 1/17/2021 12:24:06 PM
Jean Giraud

Jean Giraud

983 likes in 6866 posts.

Group: User

Wrote

Best procedure is start/construct the project sterilized of units,


... sterilized of units book style, books ancestors.
Cheers ... Jean

Maths Cannonball Copy.sm (28 KiB) downloaded 34 time(s).

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