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#*#*# (C) RashiYomi Inc. 2004, Dr. Hendel, President #*#*#
LIST690a
(C) Dr Hendel, Jan-03


List of verses where Rashi illumines thru use
of spreadsheets, mathematics, and algebra.
The latest addition is the Rashi about the Birth of Rivkah
All items may be found at
http://www.Rashiyomi.com/
VERSE Item Spreadsheet is used for
dt21-17a.htm How to give 1st-born double *1
ex38-24b.htm Computation of relative value of Biblical currency
nu03-39b.htm Accounting of Levite children
nu31-26a.htm Division of booty in war
gn05-32b.htm Computation of relative ages of Noachs children
gn25-20a.htm Proof that Rivkah was 15 when she married Isaac
COMMENTS
 
*1  Many people are familiar with the concept of the
FORMULA PLUG IN. That is a problem is solved by a
formula which you plug into.

But some problems intrinsically cannot (initally)
be solved by a formula. Instead you have to
formulate the problem algebraically and solve;only
then do you have the formula.

In other words these problems are solved by
the EQUATION vs the FORMULA

Thus the statement that the eldest gets double
suggests the following model.

- Suppose the are B brothers
- Suppose 1 of them is eldest
- The Fathers total assets are T (Total)

- Let A be the amount each brother inherits
We have no formula for A

- Then each of the B-1 brothers obtains A
- The eldest obtains double, 2A.
- Together this exhausts the Fathers estate, T

Hence we have (B-1)A + 2A = (B+1)A = T

This gives rise to the formula  A = T / (B+1)

An example is a father with 100,000 and 4 children
- T=100,000
- B=4
- So each child take T/(B+1) = 100000/5 = 20,000
- Eldest takes 2*20000=40000
- Other 3 take 20000
- Total distribution =3*20000+40000=100000

See Rambam Inheritance Chapter 2
#*#*#*# (C) RashiYomi Inc., 2004, Dr. Hendel, President #*#*#*#*#