fuzzy differential equation (FDEs) taken account the information about the behavior of a dynamical system which is uncertainty in order to obtain a more realistic and flexible model. So, we have r as the fuzzy number in the equation whereas ordinary differential equations do not have the fuzzy number.

A fuzzy database incorporates fuzzy logic to handle imprecise or uncertain information. It allows for flexible querying and supports reasoning with vague or incomplete data. Fuzzy databases are useful in situations where traditional databases fall short due to their reliance on crisp, exact values.

It could be an equation or an expression or a condition.

Fuzzy querying in relational databases involves retrieving results that are approximate or similar to the query conditions specified by the user. This can help account for variations, typos, or inaccuracies in the data. Fuzzy querying usually involves techniques like similarity matching, partial matching, or using fuzzy logic to provide more flexible and inclusive search results.

because fuzzy wazzy was fuzzy