Add spaces: Studiesofnumbertheorywerevitaltothefoundationsofcalculus,andspecialfunctionsanddifferentialequationswereessentialtorationalmechanics,whichsuppliedconcreteproblems.

Answer: Studies of number theory were vital to the foundations of calculus, and special functions and differential equations were essential to rational mechanics, which supplied concrete problems.

Add spaces: Howandwhendoesitwork?

Answer: How and when does it work?

Add spaces: Description:YoungSikaDeerrestsonfallenleaves

Answer:
Description: Young Sika Deer rests on fallen leaves