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#1
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Solving multiple equations
Hi, I have an equation in the following form: x = (y*(z+1))/(z+a) which I
have the values for x, y and a, but need to find a value for z. I can do this one at a time using the SOLVER add-in - but is there another way around this? or can you run multiple versions of solver e.g. to determine 100+ values of z for 100+ different equations? even 20+ would do! |
#2
Posted to microsoft.public.excel.worksheet.functions
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Solving multiple equations
if you just need to calculate z for each set of x,y and a then use a formula...
enter x values in Col A, y in B and a in C then enter this in D1 and copy down =(B1/A1-1)/(1-B1/A1) [check my solution and correct if wrong, but you get the idea, right?] You can enter as many sets as you want, one set per row... and copy down the formula in D1 -- Always provide your feedback so that others know whether the solution worked or problem still persists ... "Simon Jowitt" wrote: Hi, I have an equation in the following form: x = (y*(z+1))/(z+a) which I have the values for x, y and a, but need to find a value for z. I can do this one at a time using the SOLVER add-in - but is there another way around this? or can you run multiple versions of solver e.g. to determine 100+ values of z for 100+ different equations? even 20+ would do! |
#3
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Solving multiple equations
It should be
=(B1/A1-C1)/(1-B1/A1) sorry for the typo... -- Always provide your feedback so that others know whether the solution worked or problem still persists ... "Sheeloo" wrote: if you just need to calculate z for each set of x,y and a then use a formula... enter x values in Col A, y in B and a in C then enter this in D1 and copy down =(B1/A1-1)/(1-B1/A1) [check my solution and correct if wrong, but you get the idea, right?] You can enter as many sets as you want, one set per row... and copy down the formula in D1 -- Always provide your feedback so that others know whether the solution worked or problem still persists ... "Simon Jowitt" wrote: Hi, I have an equation in the following form: x = (y*(z+1))/(z+a) which I have the values for x, y and a, but need to find a value for z. I can do this one at a time using the SOLVER add-in - but is there another way around this? or can you run multiple versions of solver e.g. to determine 100+ values of z for 100+ different equations? even 20+ would do! |
#4
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Solving multiple equations
Hi,
you need to rearrange the formula, if I did it correctly it is Z=(Y/X-A)*X/(X-Y) -- Thanks, Shane Devenshire "Simon Jowitt" wrote: Hi, I have an equation in the following form: x = (y*(z+1))/(z+a) which I have the values for x, y and a, but need to find a value for z. I can do this one at a time using the SOLVER add-in - but is there another way around this? or can you run multiple versions of solver e.g. to determine 100+ values of z for 100+ different equations? even 20+ would do! |
#5
Posted to microsoft.public.excel.worksheet.functions
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Solving multiple equations
Same solution as the others, but with just 1 division
z = (y - a*x)/(x - y) -- Dana DeLouis "Simon Jowitt" wrote in message ... Hi, I have an equation in the following form: x = (y*(z+1))/(z+a) which I have the values for x, y and a, but need to find a value for z. I can do this one at a time using the SOLVER add-in - but is there another way around this? or can you run multiple versions of solver e.g. to determine 100+ values of z for 100+ different equations? even 20+ would do! |
#6
Posted to microsoft.public.excel.worksheet.functions
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Solving multiple equations
suppose u have values x,y & a in cell A1,B1,C1
in then use this formula Z=(B1-A1*C1)/A1-B1 On Oct 21, 9:03*am, ShaneDevenshire wrote: Hi, you need to rearrange the formula, if I did it correctly it is Z=(Y/X-A)*X/(X-Y) -- Thanks, Shane Devenshire "Simon Jowitt" wrote: Hi, I have an equation in the following form: x = (y*(z+1))/(z+a) which I have the values for x, y and a, but need to find a value for z. I can do this one at a time using the SOLVER add-in - but is there another way around this? or can you run multiple versions of solver e.g. to determine 100+ values of z for 100+ different equations? even 20+ would do! |
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