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J
JeffH116-Pearl
16-Pearl
September 11, 2015
Solved

Inverse Temperature Units in Prime?

  • September 11, 2015
  • 3 replies
  • 7742 views

In Mathcad 15 and earlier, there was an inverse temperature unit (actually a post-fix unary operator) for /°F and /°C.  These operators would convert a temperature to the desired units and then strip the units off.   i.e.  if T:=1100°F, then T /°F = 1100 (no units)


If I convert a Mathcad 15 worksheet with this construct in it to Prime 3.0, I get the /°F operator/unit in the Prime worksheet and it appears to work correctly.


However, this "unit" is not on the Units drop down menu or the Operators drop down and for the life of me, I can't figure out how to type this unit/operator in Mathcad Prime 3.0.  I've tried using T · "/°F" to get the string literal and then removing the quotes and setting the Units label, but I get an error that this has to be a scalar.


Anybody know how to do this?  I can't find it in the help system either - it is silent on /°F.


Jeff

Best answer by JeffH1

Well, I figured out one method:

  1. Type the number or variable
  2. Use <Ctrl>-<Shift>-U to get the "scaling" operator
  3. Press the double quote to type a string literal
  4. Between the quotes, type /°F  -  <Alt>-0176 on numeric keypad to get degree symbol
  5. Delete one of the quotes
  6. Press <Ctrl>-Q twice to change the label to a Unit

Ugh!  Is there an easier way?  Is this Unit/Operator hiding on a toolbar that I'm not seeing?

Jeff

3 replies

J
JeffH116-PearlAuthorAnswer
16-Pearl
September 11, 2015

Well, I figured out one method:

  1. Type the number or variable
  2. Use <Ctrl>-<Shift>-U to get the "scaling" operator
  3. Press the double quote to type a string literal
  4. Between the quotes, type /°F  -  <Alt>-0176 on numeric keypad to get degree symbol
  5. Delete one of the quotes
  6. Press <Ctrl>-Q twice to change the label to a Unit

Ugh!  Is there an easier way?  Is this Unit/Operator hiding on a toolbar that I'm not seeing?

Jeff

V
24-Ruby IV
ValeryOchkov24-Ruby IV
24-Ruby IV
September 11, 2015

I think we do not need "inverse temperatures" now in Prime.

See please how we can change units on plots in Mathcad 15 and Prime:

(Saturated water/steam pressure as function of temperature - DLL from www.wsp.ru)

Mathcad 15

invC15.png

Prime 3.0

invCPrime.png

V
24-Ruby IV
ValeryOchkov24-Ruby IV
24-Ruby IV
September 11, 2015

For USA

invTPrimeUSA.png

J
JeffH116-PearlAuthor
16-Pearl
September 11, 2015

Some of us in USA actually do use K and °C.  

V
24-Ruby IV
ValeryOchkov24-Ruby IV
24-Ruby IV
September 11, 2015

Jeff Henning wrote:


Anybody know how to do this?  I can't find it in the help system either - it is silent on /°F.


Jeff

invCPrimeMarkerF.png

J
JeffH116-PearlAuthor
16-Pearl
September 11, 2015

 

V
24-Ruby IV
ValeryOchkov24-Ruby IV
24-Ruby IV
September 11, 2015

Jeff Henning wrote:

Is it laughter or joy?

Better - a correct answer ( - это намек! Три очка для Очкова!)

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