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  • is any real number.


  • This function shows the value of the cardinal normalized sin function.
  • In , is any real number.
  • The full name of the function is normalized sine cardinal,but it is commonly referred to by its abbreviation, Sincp.
  • The unnormalized SINC function is defined by :

  • The normalized SINC function is called as SINCP and it is defined by .
  • The value at x = 0 is defined to be the limiting value Sinc(0) = 1.
  • The only difference between the two definitions is in the scaling of the independent variable (the x-axis) by a factor of π.


  1. SINCP(23) = 8.814971340095828e-17
  2. SINCP(-12) = -3.8981718325193755e-17
  3. SINCP(45.3) = -0.0056847264326763776

See Also