Answer each question with a minimum of 70 words per question: Who is Isaac Jacob Schoenberg? How does he relate to the topics of numerical solution and error analysis, polynomial approximation and...

Answer each question with a minimum of 70 words per question:
1) Who is Isaac Jacob Schoenberg? How does he relate to the topics of
numerical solution and error analysis, polynomial approximation and divided
difference, higher order polynomial approximation? Provide at least three
specific facts about him/his work in relation to this content, and use at least
one source with an appropriate citation and reference. (Do not use Wikipedia
or other non-scholarly sources.)
Answer: Isaac Jacob Schoenberg was a great mathematician who was born in
Romania. During his study at University of Jassy, he was greatly influenced by Schur
and then got into the research on analytic number theory. He presented this research
to the university and was awarded PhD in 1926.
Schoenberg was involved in “estimating the number of real zeroes of a polynomial
and worked on Total Positivity and variation diminishing linear transformations.”
Schoenberg came with the theory on the importance of spline functions and their use
in computation of differential equations with boundary condition or...