For me it's in-between: I like to understand the basics but happy to use numerical algorithms for everyday use. However, when I'm working on something that hea

For me it's in-between: I like to understand the basics but happy to use numerical algorithms for everyday use. However, when I'm working on something that heavily uses a specific mathematical method I like to dig in and deeply understand that aspect, otherwise you can become dependent on other peoples implementations that may not be optimal for your use case.