HP35s any good for EE?

04182015, 09:07 AM
(This post was last modified: 04192015 09:43 AM by Csaba Tizedes.)
Post: #21




RE: HP35s any good for EE?
You're right also but I guess NOT every engineer knows that 1_Pa = 1_J/m^3.
When I learned statics and mechanics (from 1999 to 2004), we used always MPa for stress calculations. Of course the tables gives properties in cm^3 and mm^4. All force in practice always kN. Old engineers "feels the range" when they are make a division of kN*m/cm^3. But I need a "conversion" because in my head everything is MPa. My 48SX is perfect for this. For fluid flow calculations (m^3/h, l/min, bar, mmWG, Pa, etc...) I can feel the right values. (04182015 08:39 AM)walter b Wrote: BTW, that example result "feels" a bit large  did you mean cm^3 instead?It was an example for unit conversion only, this is not a real life calculation. But you're right this beam section property typically given in cm^3. 

04222015, 05:05 PM
(This post was last modified: 04222015 05:08 PM by Simone Cerica.)
Post: #22




RE: HP35s any good for EE?
(04172015 11:50 AM)emece67 Wrote: At the risk of being OT. RPL calculators (HP 48/49/50) can emulate CASIO's ENG key: https://groups.google.com/forum/#!topic/...d03tImduw ex. real numbers 0.01 'ENG\>' 10.E3 'ENG\>' 10000.E6 'ENG\>' 10000000.E9 'ENG\>' 10000000000.E12 0.01 'ENG\<' 10.E3 'ENG\<' .01E0 'ENG\<' .00001E3 'ENG\<' .00000001E6 'ENG\<' .00000000001E9 5000.E3 'NORM' > 5. (STD format) real numbers with unit '1_m' 'U\>' '1000._mm' 'U\>' '1000000._\Gmm' ('\Gm' = 'μ' = micro) '1_m' 'U\<' '.001_km' 'U\<' '.000001_Mm' ('k' = kilo, 'M' = mega) useful programs for units: Unit Scaling for HP 48 http://www.hpcalc.org/details.php?id=1649 UTool and Unitman for HP 49/50 http://www.hpcalc.org/details.php?id=4612 http://www.hpcalc.org/details.php?id=4275 

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