Name
number_primecount — Returns the value of the prime-counting function.
Parameters
- x :
a matrix of floating point integers, the points where to evaluate the function, must be positive
- y :
a matrix of floating point integers, the function value
Description
The prime-counting function of x is equal to the number of prime numbers
less than or equal to x.
Examples
x = 1:60;
y = number_primecount ( x );
plot(x,y,"bo")
Authors
Copyright (C) 2009 - 2010 - DIGITEO - Michael Baudin |