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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 (9,69 KiB) descargado 1510 vez(es).

Tthere is a typo in the energy formula. Written V in instead of V^2
ex3 corr1.sm (13,02 KiB) descargado 1539 vez(es).

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 (12,57 KiB) descargado 1478 vez(es).

Wrote

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

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

Maths Cannonball Copy.sm (28,2 KiB) descargado 1573 vez(es).