# Life Path Calculation Methodology

Source:
The Bible of Numerology

## Method A


Status:
VERIFIED FROM SOURCE — WITH SOURCE NOTE

The book presents the first Life Path calculation
using the Day of Birth, Month of Birth and Year of
Birth.

Worked example:
Barack Obama — August 4, 1961

Displayed calculation:

4 + 8 + 1961
= 1973

1 + 9 + 7 + 3
= 20

2 + 0
= 2

Method A result:
Life Path 2

Second source example:
Davido — November 21, 1992

21 + 11 + 1992
→ 26
→ 8

Method A result:
Life Path 8

### Source Note

The text describes the generation number 1961
as being reduced to a single digit 8, but the
displayed Barack Obama calculation retains the
full year 1961:

4 + 8 + 1961 = 1973

We will preserve this source discrepancy in the
methodology log and will not silently reconcile
or modify the source methodology.

### Implementation Rule

For the first implementation of Method A, reproduce
the displayed worked examples exactly:

DAY + MONTH + FULL YEAR
→ reduce the resulting sum.

## Method B

Status:
VERIFIED FROM SOURCE

The book's second Life Path calculation treats
the individual digits of the birth date as separate
frequencies.

Worked example:
Barack Obama — August 4, 1961

Calculation:

4 + 8 + 1 + 9 + 6 + 1
= 29

2 + 9
= 11

Method B result:
Life Path 11

Master Number handling:
11 is retained as a Master Number.

Second source example:
Davido — November 21, 1992

Calculation:

2 + 1 + 1 + 1 + 9 + 9 + 2
= 25

2 + 5
= 7

Method B result:
Life Path 7


### Implementation Rule

Treat the individual digits of the complete
birth date as separate values, sum them, and
then apply the project's Master Number reduction
rules.

Do not automatically reduce 11 to 2, 22 to 4,
or 33 to 6 when the methodology calls for the
Master Number to be preserved.

## Worked Example

Source example:
TO BE EXTRACTED

Date of Birth:
TO BE EXTRACTED

Method A calculation:
TO BE EXTRACTED

Method A result:
TO BE EXTRACTED

Method B calculation:
TO BE EXTRACTED

Method B result:
TO BE EXTRACTED

## Implementation Decisions

No methodology will be invented, corrected,
reconciled, or replaced without explicit
source support.

## Testing Requirements

The PHP implementation must reproduce
the book's worked example.


# Life Path Test Specification

## Test Case 1

Date:
August 4, 1961

Method A:
4 + 8 + 1961
= 1973
→ 20
→ 2

Expected Method A:
2

Method B:
4 + 8 + 1 + 9 + 6 + 1
= 29
→ 11

Expected Method B:
11


## Test Case 2

Date:
November 21, 1992

Method A:
21 + 11 + 1992
= 2024
→ 8

Expected Method A:
8

Method B:
2 + 1 + 1 + 1 + 9 + 9 + 2
= 25
→ 7

Expected Method B:
7


## Acceptance Criteria

The PHP Life Path calculator must return:

August 4, 1961
- Method A = 2
- Method B = 11

November 21, 1992
- Method A = 8
- Method B = 7

The calculator must preserve Master Number 11.


### Source Inconsistency — November 21, 1992

The book's Method B worked example states:

2 + 1 + 1 + 1 + 9 + 9 + 2
= 25
→ 7

However, the complete date 21/11/1992 contains
eight digits:

2 + 1 + 1 + 1 + 1 + 9 + 9 + 2
= 26
→ 8

Therefore, the displayed source calculation
omits one digit from the date.

Implementation decision:

The software will preserve the stated Method B
rule of treating the individual digits of the
complete birth date as separate values.

Therefore:

21/11/1992
→ 26
→ 8

The book's displayed result of 7 will be retained
as a documented source example but will NOT be
used as the automated implementation expectation
unless a later source clarification establishes
that a different rule was intended.