Psi

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Psi


Psi function



Syntax


gammaln(x)

x is a real number

Return the psi function of x


x is real row/column array

Return a vector in which each element is psi function of x[i]


Example


Input

Output

psi(7.4)

psi([2.5;2.9;4.0;0.2;11.3])


See Also


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