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#*#*# (C) RashiYomi Inc. 2005, Dr. Hendel, President #*#*#
VERSE: Ex38-07b
Ex38-07b
(C) Dr Hendel, Jan-04


SUCCINCT SUMMARY
----------------
Rashi at times will organize a collection of verses for
purposes of making either numerical or geometrical
inferences. We call this the Rashi rule of SPREADSHEETS.

EXAMPLE: HOLLOW BOARDED ALTAR
-----------------------------
Ex38-07 speaks about the construction of the altar.
We are told to
- make the altar from BOARDS
- make the altar HOLLOW
The exact Biblical text is
---------------------------------
Make it[the altar] HOLLOW BOARDED
---------------------------------

Rashi comments
------------------------------------------------
The Bible here is describing a GEOMETRIC CONSTRUCTION
The boards are used to create a 4 sided box which is
consequently empty in the middle
------------------------------------------------

LIST690a below presents a collection of Rashis
using spreadsheets for either algebraic
or geometric constructions
ITEM DETAIL
RASHI RULE CLASS: SPREADSHEETS
RASHI SUBRULE CLASS AUDIT
RASHI WORKBOOK PRINCIPLE #26
SEE BELOW LIST690a
List of Rashis explaining algebra/geometry
LIST690a
(C) Dr Hendel, Jan-04

List of                  Rashis explaining algebra/geometry
VERSE Item Spreadsheet is used for
ex38-07b.htm Altar had a)boards around it b) hollow in center
ex06-16a.htm Complete spreadsheet of 430 years in Egypt
gn49-26d.htm your fathers blessings greater than my fathers
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
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#*#*#*# (C) RashiYomi Inc., 2005, Dr. Hendel, President #*#*#*#*#