Class 9 Maths Chapter 2 of NCERT Book is provided here in its latest edition. Chapter 2 Polynomials is one of the important chapters that carries high weightage for the annual exam.

In this paper, we show that for several second-order partial differential equations \begin {align*}L [u] &= A (x,y)u_ {xx} + 2B (x,y)u_ {xy} + C (x,y)u_ {yy} + D (x,y)u_x + E (x,y)u_y \\ &= \lambda_nu ...

The present paper addresses this question when using local polynomial approximations for estimating the regression function and its derivatives. A fully-automatic bandwidth selection procedure has ...