\[\left(\left(\left(e + d\right) + c\right) + b\right) + a\]
Test:
Expression 1, p15
Bits:
128 bits
Bits error versus a
Bits error versus b
Bits error versus c
Bits error versus d
Bits error versus e
Time: 9.9 s
Input Error: 0.4
Output Error: 0.3
Log: ⚲
Profile: 🕒
\(\log_* (1 + (e^{\left(\left(b + a\right) + \left(e + d\right)\right) + c} - 1)^*)\)
  1. Started with
    \[\left(\left(\left(e + d\right) + c\right) + b\right) + a\]
    0.4
  2. Using strategy rm
    0.4
  3. Applied add-cbrt-cube to get
    \[\color{red}{\left(\left(\left(e + d\right) + c\right) + b\right) + a} \leadsto \color{blue}{\sqrt[3]{{\left(\left(\left(\left(e + d\right) + c\right) + b\right) + a\right)}^3}}\]
    0.7
  4. Using strategy rm
    0.7
  5. Applied log1p-expm1-u to get
    \[\color{red}{\sqrt[3]{{\left(\left(\left(\left(e + d\right) + c\right) + b\right) + a\right)}^3}} \leadsto \color{blue}{\log_* (1 + (e^{\sqrt[3]{{\left(\left(\left(\left(e + d\right) + c\right) + b\right) + a\right)}^3}} - 1)^*)}\]
    0.7
  6. Applied simplify to get
    \[\log_* (1 + \color{red}{(e^{\sqrt[3]{{\left(\left(\left(\left(e + d\right) + c\right) + b\right) + a\right)}^3}} - 1)^*}) \leadsto \log_* (1 + \color{blue}{(e^{\left(\left(b + a\right) + \left(e + d\right)\right) + c} - 1)^*})\]
    0.3

Original test:


(lambda ((a (uniform 1 2)) (b (uniform 2 4)) (c (uniform 4 8)) (d (uniform 8 16)) (e (uniform 16 32)))
  #:name "Expression 1, p15"
  (+ (+ (+ (+ e d) c) b) a)
  #:target
  (+ (+ d (+ c (+ a b))) e))