(12C Platinum) Temperature Converter

12262018, 11:07 AM
Post: #1




(12C Platinum) Temperature Converter
Program to convert temperature between (°C <> °F)
Procedure: FIX 1 0 for (°C > °F) 1 for (°F > °C) 37°C 0 ENTER 37 [R/S] display 98.6 // Answer °F 212°F 1 ENTER 212 [R/S] display 100.0 // Answer °C  Program: (ALG Mode) Code:
Gamo 

12262018, 04:05 PM
(This post was last modified: 12262018 04:43 PM by Dieter.)
Post: #2




RE: (12C Platinum) Temperature Converter
(12262018 11:07 AM)Gamo Wrote: Program: (ALG Mode) May I ask two questions?  Why does the program require a data register? Why don't you simply recall the input with another X<>Y ?  The °F to °C conversion calculates "<input> – 32 x 5 / 9". Any decent algebraic calculator I know of would do the multiplication/division before the subtraction. Does the 12C Platinum really ignore this? So would "1+2x3=" really return 9 instead of 7 ? If the resul is (correctly) 7 the program needs parantheses or an additional "=". Edit: reading the 12C Platinum manual, I just realized that indeed this calculator does not calculate the multiplication and division first. It simply executes the operations from left to right. Unbelievable... #( Dieter 

12262018, 05:38 PM
Post: #3




RE: (12C Platinum) Temperature Converter
(12262018 04:05 PM)Dieter Wrote: Edit: reading the 12C Platinum manual, I just realized that indeed this calculator does not calculate the multiplication and division first. It simply executes the operations from left to right. Unbelievable... #( I noticed that too BTW, I prefer using 40 C = 40 F, to avoid remembering offset of ±32 With chained calculator: C→F : + 40 × 1.8  40 = F→C : + 40 ÷ 1.8  40 = 

12272018, 06:50 AM
Post: #4




RE: (12C Platinum) Temperature Converter
(12262018 04:05 PM)Dieter Wrote: Edit: reading the 12C Platinum manual, I just realized that indeed this calculator does not calculate the multiplication and division first. It simply executes the operations from left to right. Unbelievable... #( Also known as "chain mode". It seems quite common for financial calculators. The 17BII and 19BII work in the same way when set to ALG mode (i.e. it is really a chain mode), except when entering equations in the solver, where the usual order of operations is followed! The 20b and 30b support RPN, Chain, and Algebraic modes. The 10bIi+ supports Chain and Algebraic modes. — Ian Abbott 

12272018, 07:29 AM
(This post was last modified: 12272018 07:46 AM by Gamo.)
Post: #5




RE: (12C Platinum) Temperature Converter
Thanks for the review to all.
One thing I like about ALG mode that it is always do operation from left to right as Dieter mention. This kind of operation is sometime less confuse to operate but of cause that use a lot of programing steps. No wonder that 12C Platinum have 400 maximum program steps to spare. Gamo 

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