2. Centered-difference formula for the second derivative with two independent variables r and y a?u (x, y) = и(х+h.у ) — 2и(х,у)+и(х-h-у) и (§ , y ) 12 ax4 h? a²u (x , y) = h² a+u - (1 , η ) 12 əy4 и(x.y+h) — 2u(х .у) +и(х.у-h) where { E (x – h,x + h) and 7 E (y – h, y + h).

2. Centered-difference formula for the second derivative with two independent variables r and y a?u (x, y) = и(х+h.у ) — 2и(х,у)+и(х-h-у) и (§ , y ) 12 ax4 h? a²u (x , y) = h² a+u - (1 , η ) 12 əy4 и(x.y+h) — 2u(х .у) +и(х.у-h) where { E (x – h,x + h) and 7 E (y – h, y + h).

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter1: Fundamental Concepts Of Algebra

Section1.2: Exponents And Radicals

Problem 31E

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