3410数学中等derivationmedium
Second-Order Forward Stencil at a Boundary
题目
Use the second-order forward stencil (-3f(0)+4f(h)-f(2h))/(2h) with h=0.1, f(0)=1, f(0.1)=1.24, and f(0.2)=1.52. What derivative estimate do you get at 0?
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