MathGroup Archive 2012

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Terrible unit trouble in Mathematic 9

  • To: mathgroup at
  • Subject: [mg129160] Re: Terrible unit trouble in Mathematic 9
  • From: Bob Hanlon <hanlonr357 at>
  • Date: Wed, 19 Dec 2012 04:55:06 -0500 (EST)
  • Delivered-to:
  • Delivered-to:
  • Delivered-to:
  • Delivered-to:
  • References: <>


9.0 for Mac OS X x86 (64-bit) (November 20, 2012)

Either use Mathematica recognized units


96800/3937 m/s


24.5872 m/s



Or use WolframAlpha to interpret the vernacular

WolframAlpha["convert 55 mi/hr to m/s",

24.59 m/s


Quantity[24.59, "Meters"/

Bob Hanlon

On Tue, Dec 18, 2012 at 2:39 AM,  <tio540s1 at> wrote:
> I continue to receive "Unable to interpret unit specification m/s" (for e=
xample, but almost anything I attempt returns this message) with input:
> UnitConvert[55 mi/h,"m/s"] or UnitConvert[55 mi/h,m/s] or any other combi=
nation of quotes, omitted quotes, etc. Even the prediction/suggestion box, =
when I execute Quantity[55,"mi/hour"}, after it returns 55 mi/h, if I type =
in any combination of m/s, "m"/"s", "m/s", etc. into the box that opens whe=
n I select "Convert" in the prediction box yields the same "unable to inter=
pret unit specification.
> What the heck????

  • Prev by Date: Re: Input alias for Surd not working
  • Next by Date: Applying "Replace" to subsets of lists
  • Previous by thread: Terrible unit trouble in Mathematic 9
  • Next by thread: Re: Terrible unit trouble in Mathematic 9