Special Packages

Scaled complementary error function.

Inverse error function.

Natural exponential function.

Base 10 exponential function.

Base 2 exponential function.

Standard logistic function.

Evaluate a factorial.

Evaluate the double factorial.

Evaluate the natural logarithm of the factorial function.

Compute the falling factorial.

Compute the nth Fibonacci number.

Compute the Fibonacci number index.

Return a double-precision floating-point number with the magnitude of x and the sign of x*y.

Return a single-precision floating-point number with the magnitude of x and the sign of x*y.

Dirichlet eta function.

Compute the complete elliptic integral of the second kind.

Compute the Fresnel integrals S(x) and C(x).

Evaluate a physicist's Hermite polynomial.

Evaluate a normalized Hermite polynomial using double-precision floating-point arithmetic.

Evaluate a normalized Hermite polynomial using single-precision floating-point arithmetic.