I am trying to work out throughput yield in Six Sigma, and cannot figure out how to calculate 'e-dpu' on a calculator. Does 'e' always equate to 1? Thank you for your help.

Question

chaise · Answer

e is given the approximation 2.718281828, however, the capitalised E is usually used to denote x10^n

anonymous · Answer

Thank you. I'm looking at an example that says: 
DPU = 0.004125
e-dpu = 0.996

Which made me believe the value of e was 1... now reading another example that says:
DPU = 1.33
e-dpu = 0.264

which obviously denies my assumption. I must be able to work this out on a calculator, not in Excel, or else because of my exam rules.

chaise · Answer

I don't know what DPU is, sorry.

anonymous · Answer

Thank you. I'm looking at an example that says: 
DPU = 0.004125
e-dpu = 0.996

Which made me believe the value of e was 1... now reading another example that says:
DPU = 1.33
e-dpu = 0.264

which obviously denies my assumption. I must be able to work this out on a calculator, not in Excel, or else because of my exam rules.

anonymous · Answer

I apologize. DPU is short for defects per unit. I guess what I must learn is how to work out 'e-x' on a calculator... and e is a lower case by the way. Thank you for your help.

anonymous · Answer

Dear Chaise, your first answer was actually perfect. Thank you very much.