Matteo asked a question about units (but hijacked another discussion
to do so) :-)
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Hi All,
I'm trying to use sympy for units conversion..
I use this code to convert from ft to mm..
cad_leng=units.Unit('cad_leng','mm')
converter={units.m: cad_leng*Rational(1000)}
cad_ft=units.ft
cad_mm=cad_ft.subs(converter)
mm_value=float(str(cad_mm.evalf()).split('*')[0])
print mm_value
304.8
Is this right ?
Or there are any other method to get it ?
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Matteo, I would do it like this:
>>> from sympy.physics import units as u
>>> u.feet/u.mm
1524/5
>>> _.n()
304.800000000000
Just divide the quantity you have by the quantity that you want (the
way that axis labels on a graph are often reported to suggest unitless
quantities like length/m to mean that the numbers are lengths divided
by meters).
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