\[x + \left(y - z\right) \cdot \frac{t - x}{a - z}\]

x + \left(y - z\right) \cdot \frac{t - x}{a - z}

double f(double x, double y, double z, double t, double a) {
        double r8215 = x;
        double r8216 = y;
        double r8217 = z;
        double r8218 = r8216 - r8217;
        double r8219 = t;
        double r8220 = r8219 - r8215;
        double r8221 = a;
        double r8222 = r8221 - r8217;
        double r8223 = r8220 / r8222;
        double r8224 = r8218 * r8223;
        double r8225 = r8215 + r8224;
        return r8225;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019179 
(FPCore (x y z t a)
  :name "Numeric.Signal:interpolate   from hsignal-0.2.7.1"
  (+ x (* (- y z) (/ (- t x) (- a z)))))

Backtrace

result arity mismatch; expected number of values not received expected: 2 received: 1 in: local-binding form values...: 0		L	C
loop	/data/pavpan/nightlies/herbie/various-cleanup/src/core/extraction.rkt	25	2
(unnamed)	/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt	26	0
simplify!	/data/pavpan/nightlies/herbie/various-cleanup/src/mainloop.rkt	217	0
run-improve43	/data/pavpan/nightlies/herbie/various-cleanup/src/mainloop.rkt	339	0
(unnamed)	/opt/racket-7.0/collects/racket/private/more-scheme.rkt	261	28
run	/opt/racket-7.0/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/opt/racket-7.0/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.0/collects/racket/private/more-scheme.rkt	261	28