"I had to revisit Calculus & Linear Algebra too" - what resource would you recommend for this? after being a web developer for a couple of years i find myself r

"I had to revisit Calculus & Linear Algebra too" - what resource would you recommend for this? after being a web developer for a couple of years i find myself rusty and unable to find good resources for this. Trying to get into machine learning but i've forgotten most of the math