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x∈[2,3]在C语言中怎么表示

x∈[2,3]在C语言中可用下面语句: if( (x>=2) && (x2) && (x

1

#include #include double fun(double x,double x0,double x1,double x2,double y0,double y1,double y2) { double yx=0; yx=y0*(x-x1)*(x-x2)/((x0-x1)*(x0-x2))+ y1*(x-x0)*(x-x2)/((x1-x0)*(x1-x2))+ y2*(x-x0)*(x-x1)/((x2-x0)*(x2-x1));//3...

#include #include double fun(double x,double x0,double x1,double x2,double y0,double y1,double y2) { double yx=0; yx=y0*(x-x1)*(x-x2)/((x0-x1)*(x0-x2))+ y1*(x-x0)*(x-x2)/((x1-x0)*(x1-x2))+ y2*(x-x0)*(x-x1)/((x2-x0)*(x2-x1));//3...

…… int A[N], B[M],min,t,x,y; ∥给A,B赋值部分略; min=1

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