Regarding Lagrange multipliers: I don't know if this is fake or not but it made me laugh when I saw it for the first time: https://htbimporter.files.wordpress.

Regarding Lagrange multipliers: I don't know if this is fake or not but it made me laugh when I saw it for the first time: https://htbimporter.files.wordpress.com/2011/02/wow_customer_support_math.jpg https://htbimporter.files.wordpress.com/2011/02/wow_customer...