Engineering Script

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Description	<div style="color: rgb(68, 68, 68); font-family: Consolas; font-size: 15px;"><div>For engineers, unit conversion is the most basic of basics. In the field, there are gauge units and absolute units, so minor mistakes can lead to very different calculation results. Also, there are times when you want to verify your unit conversion.</div><div><br></div><h2 style="margin: 0px; position: relative; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-weight: bold; font-stretch: normal; font-size: 14px; line-height: normal; font-family: "Trebuchet MS", Trebuchet, sans-serif; color: rgb(0, 0, 0);"><span style="font-family: Consolas;">Python code of unit converter</span></h2><div><br>The Python code below is an example of temperature and pressure engineering unit conversion.<br><span style="color: rgb(43, 0, 254);">dbUnit = [</span><br><span style="color: rgb(43, 0, 254);">         ['C', 'Temperature', 1.0, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['K', 'Temperature', 1.0, 273.15],</span><br><span style="color: rgb(43, 0, 254);">         ['F', 'Temperature', 1.8, 32.0],</span><br><span style="color: rgb(43, 0, 254);">         ['R', 'Temperature', 1.8, 491.67],</span><br><span style="color: rgb(43, 0, 254);">         ['kPa', 'Pressure',  1.0, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['MPa', 'Pressure',  0.001, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['bar', 'Pressure',  0.01, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['N/m2', 'Pressure', 1000.0, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['atm', 'Pressure', 0.009869233, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['at', 'Pressure', 0.01019716, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['kg/cm2', 'Pressure', 0.01019716, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['psia', 'Pressure', 0.1450377, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['lbf/ft2', 'Pressure', 20.88543, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['torr', 'Pressure', 7.500615, 0.0],</span><br><span style="color: rgb(43, 0, 254);">         ['kPag', 'Pressure', 1.0, -101.325],</span><br><span style="color: rgb(43, 0, 254);">         ['MPag', 'Pressure', 0.001, -0.101325],</span><br><span style="color: rgb(43, 0, 254);">         ['bar_g', 'Pressure', 0.01, -1.01325],</span><br><span style="color: rgb(43, 0, 254);">         ['N/m2_g', 'Pressure', 1000.0, -101325.0],</span><br><span style="color: rgb(43, 0, 254);">         ['atm_g', 'Pressure', 0.009869, -1.0],</span><br><span style="color: rgb(43, 0, 254);">         ['ate', 'Pressure', 0.01019716, -1.033227],</span><br><span style="color: rgb(43, 0, 254);">         ['kg/cm2_g', 'Pressure', 0.01019716, -1.033227],</span><br><span style="color: rgb(43, 0, 254);">         ['psig', 'Pressure', 0.1450377, -14.696],</span><br><span style="color: rgb(43, 0, 254);">         ['lbf/ft2_g', 'Pressure', 20.88543, -2116.216],</span><br><span style="color: rgb(43, 0, 254);">         ['torr_g', 'Pressure', 7.500615, -760.0],</span><br><span style="color: rgb(43, 0, 254);">         ]</span></div><div><br></div><span style="color: rgb(43, 0, 254);">def loadUnit(search):<br>    for i in range(len(dbUnit)):<br>        if dbUnit[i][0] == search:<br>            UnitGroup = dbUnit[i][1]<br>            UnitScale = float(dbUnit[i][2])<br>            UnitOffset = float(dbUnit[i][3])<br><br>    return UnitGroup, UnitScale , UnitOffset<br><br>def unitconv(number, Unit_old, Unit_new):<br>    <br>    Group_old, Scale_old, Offset_old = loadUnit(Unit_old)<br>    Group_new, Scale_new, Offset_new = loadUnit(Unit_new)<br><br>    if Scale_old == 0 or Group_old != Group_new: <br>        return None<br><br>    return ((number - Offset_old) / Scale_old) * Scale_new + Offset_new<br><br>print(unitconv(50, "C", "R")) # 50 C = 581.67 R<br>print(unitconv(10, "bar_g", "kPa")) # 10 bar_g = 1101.325 kPA</span><br></div>