> For the complete documentation index, see [llms.txt](https://docs.pancakeswap.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pancakeswap.finance/espanol/intercambio/perpetual-trading/perpetual-trading-v2/madbtcusd/madbtcusd-faq.md).
# Preguntas frecuentes de MADBTCUSD
### ¿Cómo se calcula el Índice MADBTCUSD?
MADBTCUSD se calcula basándose en la siguiente fórmula:
**Índice MADBTCUSD**
$$
\begin{align\*}
\text{drift} &= \left( \frac{\text{btcCurrentPrice} - 1}{\text{btcLastSecondPrice}} \right) \times 5 \\
\\
\sigma &= \frac{\text{expectedvol}}{\sqrt{3600 \times 24 \times 365}} \\
\\
norm &= \text{norminv}(\text{Random}, 0, 1) \\
\\
S\_{n+1} &= S\_{n} \times e^{\left\[\left(\text{drift} - \frac{\sigma^2}{2}\right) \times \text{dt} + \sigma \times \sqrt{\text{dt}} \times norm\right]}
\end{align\*}
$$
donde:
* Sn inicial=1000
* dt=1
* volatilidad esperada：100%(la volatilidad esperada es la volatilidad temporal esperada de MADBTC)
* el "**Número aleatorio**" se calcula basándose en el **precio actual de BTC con 8 decimales de precisión**
**Cálculo del Número Aleatorio:**
```python
import hashlib
from decimal import Decimal
# Supón que el precio actual de Bitcoin es 48923.56789101
bitcoin_price = Decimal("48923.56789101")
# Calcula el hash SHA-256 del precio de Bitcoin
price_hash = hashlib.sha256(str(bitcoin_price).encode('utf-8')).hexdigest()
# Extrae los primeros 8 números hexadecimales del hash
hash_substring = price_hash[:8]
# Convierte una cadena hexadecimal a un entero
hash_integer = int(hash_substring, 16)
# Divide el entero por 4294967296 (el número decimal correspondiente al número hexadecimal FFFFFFFF) para obtener un número
random_number = hash_integer / 4294967296
# Imprime el número aleatorio
print(random_number)
```
Si el número aleatorio determinado es 0, se recalculará
### ¿Dónde puedo verificar cruzadamente el precio histórico de BTC y MADBTCUSD?
El feed de precios de BTC y MADBTCUSD se puede encontrar aquí:
[BTCUSD](https://www.apollox.finance/bapi/futures/v1/public/future/apx/V2MarkPriceKline?symbol=BTCUSD\&limit=1800)
[MADBTCUSD](https://www.apollox.finance/bapi/futures/v1/public/future/apx/V2MarkPriceKline?symbol=MADBTCUSD\&limit=1800)
### Datos de prueba retrospectiva histórica de BTC y MADBTC
Para verificar cruzadamente los precios históricos de BTC y MADBTC, hemos proporcionado un gráfico de prueba retrospectiva a continuación.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.pancakeswap.finance/espanol/intercambio/perpetual-trading/perpetual-trading-v2/madbtcusd/madbtcusd-faq.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
