For the purposes of emulation/prediction, the function is evaluated on x i ∈ [0, 1], for all i = 1, …, d. For integration purposes, when the function is integrated over [0, 1] d, the integral is ...

Musk himself confirmed the news by making an official announcement on its social media platform X itself, stating that the integration ... the way platforms like X function in the future.

In other words you add one to the power, divide by the new power and also by the derivative of what's inside the bracket. Don't forget to add the constant of integration.