Texas Instruments TI-89 User Manual - Page 890
tmpCnv, To select temperature units from a menu, press, To get, you can press - 890
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tmpCnv() CATALOG tmpCnv(expression1_¡tempUnit1, _¡tempUnit2) ⇒ expression _¡tempUnit2 Converts a temperature value specified by expression1 from one unit to another. Valid temperature units are: _¡C Celsius _¡F Fahrenheit _¡K Kelvin _¡R Rankine For ¡, press 2 ". For _ , press ¥ . tmpCnv(100_¡c,_¡f) ¸ tmpCnv(32_¡f,_¡c) ¸ tmpCnv(0_¡c,_¡k) ¸ tmpCnv(0_¡f,_¡r) ¸ 212.ø_¡F 0.ø_¡C 273.15ø_¡K 459.67ø_¡R Note: To select temperature units from a menu, press 2 9 For example, 100_¡C converts to 212_¡F: 0 100 _¡C _¡F 32 212 To convert a temperature range, use @tmpCnv() instead. @tmpCnv() CATALOG @tmpCnv(expression1_¡tempUnit1, _¡tempUnit2) ⇒ expression _¡tempUnit2 Converts a temperature range (the difference between two temperature values) specified by expression1 from one unit to another. Valid temperature units are: _¡C Celsius _¡F Fahrenheit _¡K Kelvin _¡R Rankine For ¡, press 2 ". For _ , press ¥ . 1_¡C and 1_¡K have the same magnitude, as do 1_¡F and 1_¡R. However, 1_¡C is 9/5 as large as 1_¡F. To get @, you can press ¥ c ¤ [D] (or 2 ¿ 1 5). @tmpCnv(100_¡c,_¡f) ¸ 180.ø_¡F @tmpCnv(180_¡f,_¡c) ¸ 100.ø_¡C @tmpCnv(100_¡c,_¡k) ¸ 100.ø_¡K @tmpCnv(100_¡f,_¡r) ¸ 100.ø_¡R @tmpCnv(1_¡c,_¡f) ¸ 1.8ø_¡F Note: To select temperature units from a menu, press 2 9 For example, a 100_¡C range (from 0_¡C to 100_¡C) is equivalent to a 180_¡F range: 100_¡C 0 100 _¡C _¡F 32 212 180_¡F To convert a particular temperature value instead of a range, use tmpCnv(). 890 Appendix A: Functions and Instructions