Quote from: MrFreeDragon on Today at 10:32:16 PM

Quote from: ricardosuperx on Today at 09:54:14 PM

-snip-
The correct is:112711660439710606056748659173929673102114977341539408544630613555209775888121

What did I do wrong?
Huh

Why do not you examine the messages above? There are two different formulas: one for duplication and another for addition.
To be honest your messages are very hard to read. It could be more helpful for you if you can ask the specific question you do not understand or have issues with.

SORRY"My English is bad and I'm not good at math or programming.
That will be my last question.
What did I do wrong?
Because the result was not:112711660439710606056748659173929673102114977341539408544630613555209775888121

Order: 115792089237316195423570985008687907852837564279074904382605163141518161494337

Modulo: 115792089237316195423570985008687907853269984665640564039457584007908834671663

Private key: 0000000000000000000000000000000000000000000000000000000000000003

Point addition:(2G+1G =3G)
Compressed public key;
In decimal;
Equation:

c = (qy py) / (qx px)
rx = c^2 px qx

px = 89565891926547004231252920425935692360644145829622209833684329913297188986597
py = 12158399299693830322967808612713398636155367887041628176798871954788371653930
qx = 55066263022277343669578718895168534326250603453777594175500187360389116729240
qy = 32670510020758816978083085130507043184471273380659243275938904335757337482424

c = 32670510020758816978083085130507043184471273380659243275938904335757337482424-
12158399299693830322967808612713398636155367887041628176798871954788371653930=
20512110721064986655115276517793644548315905493617615099140032380968965828494

c = 55066263022277343669578718895168534326250603453777594175500187360389116729240-
89565891926547004231252920425935692360644145829622209833684329913297188986597=
81292460333046534861896783477920749818876442289795948381273441455000762414306

c = 20512110721064986655115276517793644548315905493617615099140032380968965828494/
81292460333046534861896783477920749818876442289795948381273441455000762414306=
23578750110654438173404407907450265080473019639451825850605815020978465167024

c = 23578750110654438173404407907450265080473019639451825850605815020978465167024

rx = 23578750110654438173404407907450265080473019639451825850605815020978465167024^2 -
89565891926547004231252920425935692360644145829622209833684329913297188986597-
55066263022277343669578718895168534326250603453777594175500187360389116729240

rx = 25759636913902563110438328477658084082469757293658084474899962813078412260632-
34499628904269660561674201530767158034393542375844615658184142552908072257357

rx = 107052097246949097972335111955578833901346199583454032856173404268079174674938

The correct is:112711660439710606056748659173929673102114977341539408544630613555209775888121