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مکانیک::
تابع ترکیب
[ F1 F2 F3 F4 ] and B = [ P0 P1 P'0 P'1] F B F1 , F2 , F3 , F4 , are called blending function or Hermite polynomial basis functions.
F is the blending function matrix.
The blending function matrix F can be written as the product of two matrices.
With blending functions: Bi,n (u) = C(n,i) ui (1 - u)n-i where n is the binomial coefficient
The N(u) blending functions are defined recursively as :
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