Ratio Equation Program

09082017, 11:04 AM
(This post was last modified: 09082017 11:44 AM by Gamo.)
Post: #1




Ratio Equation Program
Found this program on HP Keys Note newsletter about Ratio Equation
A/B = C/D With unknown quantity input as Zero and key in the values for A, B, C, and D Program: Quote:LBL A Examples: 13/22 = X/44 13 ENTER 22 ENTER 0 ENTER 44 > LBL A = 26 X/22 = 26/44 0 ENTER 22 ENTER 26 ENTER 44 > LBL A = 13 Anyone have an idea on how to make this program shorter and program to work for HP 12C since 12C don't have GTO for goto Label. Thank You Gamo 

09082017, 11:40 AM
Post: #2




RE: Ratio Equation Program
(09082017 11:04 AM)Gamo Wrote: Anyone have an idea on how to make this program shorter and Here is a working program on the 12C: Code: 001 x=0? 13/22 = X/44 13 ENTER 22 ENTER 0 ENTER 44 R/S > 26 X/22 = 26/44 0 ENTER 22 ENTER 26 ENTER 44 R/S > 13 Note: you should not have ENTER after the last number (D) as it would duplicate it in the Y register and you would loose the content of T (A). 

09082017, 11:54 AM
Post: #3




RE: Ratio Equation Program
Thank You Didier Lachieze
I just edit the last [D] no need to ENTER Your program work very good I try many difference ratio and it all work Thanks Gamo 

09082017, 04:09 PM
Post: #4




RE: Ratio Equation Program
A shorter version (2 steps less):
Code: 001 x=0? 

09082017, 11:32 PM
(This post was last modified: 09082017 11:32 PM by Joe Horn.)
Post: #5




RE: Ratio Equation Program
Here's an even shorter program that takes the 3 known values, entered on the stack in either clockwise or counterclockwise order, starting from the unknown but skipping it. For example, if this is the equation: \(\frac { 51 }{ 57 } =\frac { 68 }{ x } \), then you'd enter the values either of these two ways:
57 ENTER 51 ENTER 68 [clockwise] 68 ENTER 51 ENTER 57 [counterclockwise] Then run this program: Code: 001 ÷ Of course, crossmultiplying and then dividing also takes only two operations, but I like the circular input pattern of this RPNfriendly method. <0ɸ0> Joe 

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