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数学建模:Logistic回归预测
Logistic回归预测
logistic方程的定义: x t 1 c a e b t x_{t}\frac{1}{cae^{bt}}\quad xtcaebt1 d x d t − a b e b t ( c a e b t ) 2 >…
VB:百元买百鸡问题
Private Sub Command1_Click()ClsRem 百元买百鸡问题Print "公鸡", "母鸡", "小鸡"For x 0 To 20For y 0 To 33z 100 - x - yIf z Mod 3 0 ThenIf 5 * x 3 * y z / 3 100 ThenPrint x, y, zEnd IfEnd IfNe…