Asymptote B

Specification

?
\[\frac{1}{x - 1} + \frac{x}{x + 1} \]
(FPCore (x)
  :precision binary64
  :pre TRUE
  (+ (/ 1.0 (- x 1.0)) (/ x (+ x 1.0))))
double code(double x) {
	return (1.0 / (x - 1.0)) + (x / (x + 1.0));
}
real(8) function code(x)
use fmin_fmax_functions
    real(8), intent (in) :: x
    code = (1.0d0 / (x - 1.0d0)) + (x / (x + 1.0d0))
end function
public static double code(double x) {
	return (1.0 / (x - 1.0)) + (x / (x + 1.0));
}
def code(x):
	return (1.0 / (x - 1.0)) + (x / (x + 1.0))
function code(x)
	return Float64(Float64(1.0 / Float64(x - 1.0)) + Float64(x / Float64(x + 1.0)))
end
function tmp = code(x)
	tmp = (1.0 / (x - 1.0)) + (x / (x + 1.0));
end
code[x_] := N[(N[(1.0 / N[(x - 1.0), $MachinePrecision]), $MachinePrecision] + N[(x / N[(x + 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
f(x):
	x in [-inf, +inf]
code: THEORY
BEGIN
f(x: real): real =
	((1) / (x - (1))) + (x / (x + (1)))
END code
\frac{1}{x - 1} + \frac{x}{x + 1}

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