4850数理金融简单数值题short
Infer Explicit Update Weight 10
题目
A finite-difference node uses u_new = u_old + lambda*(u_up - 2*u_old + u_down). The grid export shows u_old=4.5, u_up=5.5, u_down=4, and u_new=4.6. What lambda was used?
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