I'm a new user of MMA ver. 10.3.0 Home Edition. I'm trying to learn how to use Units, but it's not working. For example
In[47]:= UnitConvert[Quantity[12, "Meters"/"Seconds"], "Miles"/"Hours"]
Out[47]= UnitConvert[
QuantityUnits`Private`ToQuantity[
QuantityUnits`Private`UnknownQuantity[12, ("Meters")/(
"Seconds")]], ("Miles")/("Hours")]
If I load the Units` package I get the answer I seek:
In[48]:= << Units`
Convert[12 Meter/Second, Mile/Hour]
Out[49]= (37500 Mile)/(1397 Hour)
But starting with ver 9 I shouldn't have had to do that. Any ideas about what's going on?
