How to Calculate the Pythagorean Psychomatrix Step by Step

The Pythagorean Psychomatrix (often called the Pythagorean Square or Psychomatrix) is a numerology method that turns your date of birth into a simple 3×3 grid. Each cell of the grid represents a trait area (like energy, logic, responsibility, luck), and the number of times a digit appears (1–9) is interpreted as the “strength” or “emphasis” of that trait.

Below you’ll find a clear, practical, step-by-step method you can use for any birth date.

You only need:

A date of birth (DD.MM.YYYY)
A pen, paper, or notes app

You will create:

a digit list from the birth date
four additional numbers (often called A, B, C, D)
a 3×3 psychomatrix grid filled with counts of digits 1–9

Step 1: Write the Birth Date as Digits

Example date: 15.08.2007

Write all digits in a row (ignore dots):
1 5 0 8 2 0 0 7

These digits are your base pool.

Step 2: Calculate the First Additional Number (A)

Add all digits of the birth date:

For 15.08.2007:
1 + 5 + 0 + 8 + 2 + 0 + 0 + 7 = 23

So: A = 23

Step 3: Calculate the Second Additional Number (B)

Add the digits of A:

For A = 23:
2 + 3 = 5

So: B = 5

Step 4: Calculate the Third Additional Number (C)

Take A and subtract 2 × the first digit of the day.

The day is 15, so the first digit of the day is 1.
Compute: C = A − 2×(first day digit)

C = 23 − 2×1 = 23 − 2 = 21

So: C = 21

If the day starts with 0 (like 07), the first day digit is 0.

Step 5: Calculate the Fourth Additional Number (D)

Add the digits of C:

For C = 21:
2 + 1 = 3

So: D = 3

Step 6: Create Your Full Digit Pool

Now combine:

digits from the birth date
digits from A
digits from B
digits from C
digits from D

Birth date digits: 1 5 0 8 2 0 0 7
A = 23 → 2 3
B = 5 → 5
C = 21 → 2 1
D = 3 → 3

Full pool:
1, 5, 0, 8, 2, 0, 0, 7, 2, 3, 5, 2, 1, 3

Important rule:

Zeros are NOT placed into the psychomatrix grid (the grid uses digits 1–9).

Step 7: Count Digits 1–9

Count how many times each digit appears in the full pool:

From the list:

1 appears 2 times (1, 1)
2 appears 3 times (2, 2, 2)
3 appears 2 times (3, 3)
4 appears 0
5 appears 2 times (5, 5)
6 appears 0
7 appears 1 time
8 appears 1 time
9 appears 0

Step 8: Fill the 3×3 Psychomatrix Grid

The classic Pythagorean Psychomatrix layout is:

1	2	3
4	5	6
7	8	9

Now fill each cell with the digit repeated as many times as it occurs:

1 → 11
2 → 222
3 → 33
4 → (empty)
5 → 55
6 → (empty)
7 → 7
8 → 8
9 → (empty)

So the final psychomatrix is:

11	222	33
–	55	–
7	8	–

(You can leave empty cells blank or mark them with a dash.)

Common Mistakes to Avoid

Including zeros in the grid (zeros don’t go into psychomatrix cells).
Using the whole day number in Step 4 instead of the first digit of the day.
Forgetting to include digits from A, B, C, D in the final pool.
Mixing formats: always treat the date as digits, not as “fifteen” etc.