# Formula Help

Hello All, I have the formula below, I am trying to figure out a way to code it so if E14=0, then in the formula, make E14=.01 (formula b), if E12=0 then formula C, if both E14 and E12 are  0,  then formula D

((((6.11*10*(7.5*E14/(237.7+E14))/(6.11*10*(7.5*E12/(237.7+E12))))
)))*100

Formula B
((((6.11*10*(7.5*.01/(237.7+.01))/(6.11*10*(7.5*E12/(237.7+E12))))
)))*100

Formula C
((((6.11*10*(7.5*E14/(237.7+E14))/(6.11*10*(7.5*.01/(237.7+.01))))
)))*100

Formula D
((((6.11*10*(7.5*.01/(237.7+.01))/(6.11*10*(7.5*.01/(237.7+.01))))
)))*100
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Commented:
((((6.11*10*(7.5*E14/(237.7+IF(E14=0,0.01,E14)))/(6.11*10*(7.5*E12/(237.7+IF(E12=0,0.01,E12)))))
)))*100
Commented:
Basically for each one, instead of

E14

You get the value from

IF(E14 = 0, 0.01, E14)

so that when E14 is non-zero, it is still E14, but if it is zero, you get 0.01
Mechanical EngineerCommented:
I believe that you can do the job with two IF functions (rather than the four required by cyberkiwi's approach) if you eliminate the common factors and extra parentheses:
=IF(E14=0,0.01/(237.7+0.01),E14/(237.7+E14))/IF(E12=0,0.01/(237.7+0.01),E12/(237.7+E12))
*100

or the even simpler:
=IF(E14=0,0.01/237.71,E14/(237.7+E14))/IF(E12=0,0.01/237.71,E12/(237.7+E12))
*100

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Commented:

= ((((6.11*10*(7.5*IF(E14=0,0.01,E14)/(237.7+IF(E14=0,0.01,E14)))/(6.11*10*(7.5*IF(E12=0,0.01,E12)/(237.7+IF(E12=0,0.01,E12))))))))*100
Commented:
Change all E14 to 0.01 for E14 = 0, (this formula contains 2 E14)
Change all E12 to 0.01 for E12 = 0, (this formula contains 2 E12)
Thus, the formula is
= ((((6.11*10*(7.5*IF(E14=0,0.01,E14)/(237.7+IF(E14=0,0.01,E14)))/(6.11*10*(7.5*IF(E12=0,0.01,E12)/(237.7+IF(E12=0,0.01,E12))))))))*100
Mechanical EngineerCommented:
Or even a few characters less, though with logic a trifle harder to see:
=IF(E14=0,1/23771,E14/(237.7+E14))/IF(E12=0,1/23771,E12/(237.7+E12))*100
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Microsoft Excel

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