AI (Artificial Intelligence) is a broad field that encompasses many different techniques and methods, so there is no single set of equations that can be considered "AI equations". However, there are some mathematical concepts and equations that are commonly used in AI research and applications. Here are a few examples:

1. Linear regression: Linear regression is a statistical method for modeling the relationship between a dependent variable and one or more independent variables. It is often used in machine learning to predict a continuous outcome based on one or more input features. The basic equation for linear regression is:

   y = b0 + b1x1 + b2x2 + ... + bn*xn

   where y is the dependent variable, x1, x2, ..., xn are the independent variables, b0 is the intercept, and b1, b2, ..., bn are the coefficients.
   
2. Logistic regression: Logistic regression is a statistical method for modeling the probability of a binary outcome (e.g., yes or no) based on one or more input features. The basic equation for logistic regression is:

   p(y=1|x) = 1 / (1 + exp(-(b0 + b1x1 + b2x2 + ... + bn*xn)))

   where p(y=1|x) is the probability of the binary outcome y=1 given the input features x1, x2, ..., xn, b0 is the intercept, and b1, b2, ..., bn are the coefficients.
  
3. Neural networks: Neural networks are a class of algorithms that are inspired by the structure and function of the human brain. They consist of layers of interconnected nodes that perform calculations on the input data. The equations used in neural networks depend on the specific architecture and activation functions used, but some common equations include:
         
* Linear Transformation: y = wx + b, where y is the output, x is the input, w is the weight matrix, and b is the bias vector.
* Activation Function: f(x), which is applied to the output of the linear transformation to introduce nonlinearity into the model.
* Loss Function: L(y, y'), which measures the difference between the predicted output y' and the true output y.
* Machine Learning
* Deep Learning
* Natural Language Processing
* AI Ethics
* AI Bias

There are many other mathematical concepts and techniques used in AI, such as clustering, decision trees, and support vector machines, each with their own set of equations and formulas.

-----------------------------