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#1
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product from k= 0 to n
Ok, so what is the Excell function that will solve my problem.
I am calculating a temporary life Insurance ( from Life Table) and need to sum the column of a spreadsheet from 0 to n, n being the lenght (variable) of the Temporary Life Insurance. Any tips? Ex.:product from p3 to p12 if n=10, p30 to22 if n=20, etc. Thing is i need to be able tu put any value of n in the input table and that same n valu affect the lenght of the items I need to multiply. So far I am he =B2*(1-PUISSANCE(Data!$B$4,lenght)*PRODUCT(Data!N4:@@@)) It is the part after the * that I am not ure how it should be coded. With IF? I donno Thanks |
#2
Posted to microsoft.public.excel.worksheet.functions
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product from k= 0 to n
Take a look at OFFSET, something like
=OFFSET(Data!$P$3,(n-1)*30,0,13,1) -- HTH Bob Phillips (remove nothere from email address if mailing direct) "sylphide" wrote in message ... Ok, so what is the Excell function that will solve my problem. I am calculating a temporary life Insurance ( from Life Table) and need to sum the column of a spreadsheet from 0 to n, n being the lenght (variable) of the Temporary Life Insurance. Any tips? Ex.:product from p3 to p12 if n=10, p30 to22 if n=20, etc. Thing is i need to be able tu put any value of n in the input table and that same n valu affect the lenght of the items I need to multiply. So far I am he =B2*(1-PUISSANCE(Data!$B$4,lenght)*PRODUCT(Data!N4:@@@)) It is the part after the * that I am not ure how it should be coded. With IF? I donno Thanks |
#3
Posted to microsoft.public.excel.worksheet.functions
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product from k= 0 to n
OK Bob, thanks.
It appears thet the OFFSET formula puts me in the right track but I am still stuck. This is what i wrote: =B2*(1-Data!$B$4^lenght)*PRODUCT(OFFSET(Data!$N$4,lenght-1,0,1,1)) where the lenght is equal to n in the Temporary Insurance B2 is Ax, ie the whole life insurance corresponding to the life age (x) Data!$B$4 is the discount factor (=1/1+i) and i is the interest rate $N$4 is the px (probability of life age (x) surviving to next year (which I am pretty sure is the data i need to Offset depending on the lenght of n) However,from your formula "=OFFSET(Data!$P$3,(n-1)*30,0,13,1)" I do not understand why I must multiply by 30, nor do I understand the number 13. Thanks again. "Bob Phillips" wrote: Take a look at OFFSET, something like =OFFSET(Data!$P$3,(n-1)*30,0,13,1) -- HTH Bob Phillips (remove nothere from email address if mailing direct) "sylphide" wrote in message ... Ok, so what is the Excell function that will solve my problem. I am calculating a temporary life Insurance ( from Life Table) and need to sum the column of a spreadsheet from 0 to n, n being the lenght (variable) of the Temporary Life Insurance. Any tips? Ex.:product from p3 to p12 if n=10, p30 to22 if n=20, etc. Thing is i need to be able tu put any value of n in the input table and that same n valu affect the lenght of the items I need to multiply. So far I am he =B2*(1-PUISSANCE(Data!$B$4,lenght)*PRODUCT(Data!N4:@@@)) It is the part after the * that I am not ure how it should be coded. With IF? I donno Thanks |
#4
Posted to microsoft.public.excel.worksheet.functions
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product from k= 0 to n
See my answer in other newsgroup
-- Kind regards, Niek Otten "sylphide" wrote in message ... OK Bob, thanks. It appears thet the OFFSET formula puts me in the right track but I am still stuck. This is what i wrote: =B2*(1-Data!$B$4^lenght)*PRODUCT(OFFSET(Data!$N$4,lenght-1,0,1,1)) where the lenght is equal to n in the Temporary Insurance B2 is Ax, ie the whole life insurance corresponding to the life age (x) Data!$B$4 is the discount factor (=1/1+i) and i is the interest rate $N$4 is the px (probability of life age (x) surviving to next year (which I am pretty sure is the data i need to Offset depending on the lenght of n) However,from your formula "=OFFSET(Data!$P$3,(n-1)*30,0,13,1)" I do not understand why I must multiply by 30, nor do I understand the number 13. Thanks again. "Bob Phillips" wrote: Take a look at OFFSET, something like =OFFSET(Data!$P$3,(n-1)*30,0,13,1) -- HTH Bob Phillips (remove nothere from email address if mailing direct) "sylphide" wrote in message ... Ok, so what is the Excell function that will solve my problem. I am calculating a temporary life Insurance ( from Life Table) and need to sum the column of a spreadsheet from 0 to n, n being the lenght (variable) of the Temporary Life Insurance. Any tips? Ex.:product from p3 to p12 if n=10, p30 to22 if n=20, etc. Thing is i need to be able tu put any value of n in the input table and that same n valu affect the lenght of the items I need to multiply. So far I am he =B2*(1-PUISSANCE(Data!$B$4,lenght)*PRODUCT(Data!N4:@@@)) It is the part after the * that I am not ure how it should be coded. With IF? I donno Thanks |
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