\[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
Test:
Compound Interest
Bits:
128 bits
Bits error versus i
Bits error versus n
Time: 26.3 s
Input Error: 51.3
Output Error: 9.6
Log:
Profile: 🕒
\(\begin{cases} 100 \cdot \frac{\frac{{\left({\left(1 + \frac{i}{n}\right)}^{n}\right)}^2 - {1}^2}{{\left(1 + \frac{i}{n}\right)}^{n} + 1}}{\frac{i}{n}} & \text{when } i \le -0.0006054868320781522 \\ \left(i \cdot 50 + 100\right) \cdot n & \text{when } i \le 3.135592761500106 \cdot 10^{-05} \\ 100 \cdot \frac{\frac{{\left({\left(1 + \frac{i}{n}\right)}^{n}\right)}^2 - {1}^2}{{\left(1 + \frac{i}{n}\right)}^{n} + 1}}{\frac{i}{n}} & \text{when } i \le 1.214996661954119 \cdot 10^{+104} \\ \frac{\left(\frac{1}{2} \cdot e^{\frac{2}{i}}\right) \cdot \left(100 \cdot n\right)}{i \cdot e^{\frac{\frac{2}{i}}{i}}} & \text{when } i \le 1.5778042482736102 \cdot 10^{+150} \\ \frac{100}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{1}{n}} & \text{otherwise} \end{cases}\)

    if i < -0.0006054868320781522 or 3.135592761500106e-05 < i < 1.214996661954119e+104

    1. Started with
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
      29.2
    2. Using strategy rm
      29.2
    3. Applied flip-- to get
      \[100 \cdot \frac{\color{red}{{\left(1 + \frac{i}{n}\right)}^{n} - 1}}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{\frac{{\left({\left(1 + \frac{i}{n}\right)}^{n}\right)}^2 - {1}^2}{{\left(1 + \frac{i}{n}\right)}^{n} + 1}}}{\frac{i}{n}}\]
      29.3

    if -0.0006054868320781522 < i < 3.135592761500106e-05

    1. Started with
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
      61.7
    2. Applied taylor to get
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{\left(\frac{1}{2} \cdot {i}^2 + \left(1 + i\right)\right) - 1}{\frac{i}{n}}\]
      60.2
    3. Taylor expanded around 0 to get
      \[100 \cdot \frac{\color{red}{\left(\frac{1}{2} \cdot {i}^2 + \left(1 + i\right)\right)} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{\left(\frac{1}{2} \cdot {i}^2 + \left(1 + i\right)\right)} - 1}{\frac{i}{n}}\]
      60.2
    4. Applied simplify to get
      \[\color{red}{100 \cdot \frac{\left(\frac{1}{2} \cdot {i}^2 + \left(1 + i\right)\right) - 1}{\frac{i}{n}}} \leadsto \color{blue}{\left(\frac{1}{2} \cdot i + 1\right) \cdot \frac{i \cdot 100}{\frac{i}{n}}}\]
      14.2
    5. Applied taylor to get
      \[\left(\frac{1}{2} \cdot i + 1\right) \cdot \frac{i \cdot 100}{\frac{i}{n}} \leadsto 100 \cdot n + 50 \cdot \left(n \cdot i\right)\]
      0.0
    6. Taylor expanded around 0 to get
      \[\color{red}{100 \cdot n + 50 \cdot \left(n \cdot i\right)} \leadsto \color{blue}{100 \cdot n + 50 \cdot \left(n \cdot i\right)}\]
      0.0
    7. Applied simplify to get
      \[\color{red}{100 \cdot n + 50 \cdot \left(n \cdot i\right)} \leadsto \color{blue}{\left(i \cdot 50 + 100\right) \cdot n}\]
      0.0

    if 1.214996661954119e+104 < i < 1.5778042482736102e+150

    1. Started with
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
      55.7
    2. Applied taylor to get
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{\left(\frac{1}{2} \cdot {i}^2 + \left(1 + i\right)\right) - 1}{\frac{i}{n}}\]
      49.1
    3. Taylor expanded around 0 to get
      \[100 \cdot \frac{\color{red}{\left(\frac{1}{2} \cdot {i}^2 + \left(1 + i\right)\right)} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{\left(\frac{1}{2} \cdot {i}^2 + \left(1 + i\right)\right)} - 1}{\frac{i}{n}}\]
      49.1
    4. Applied simplify to get
      \[\color{red}{100 \cdot \frac{\left(\frac{1}{2} \cdot {i}^2 + \left(1 + i\right)\right) - 1}{\frac{i}{n}}} \leadsto \color{blue}{\left(\frac{1}{2} \cdot i + 1\right) \cdot \frac{i \cdot 100}{\frac{i}{n}}}\]
      49.1
    5. Using strategy rm
      49.1
    6. Applied add-exp-log to get
      \[\left(\frac{1}{2} \cdot i + 1\right) \cdot \frac{i \cdot 100}{\color{red}{\frac{i}{n}}} \leadsto \left(\frac{1}{2} \cdot i + 1\right) \cdot \frac{i \cdot 100}{\color{blue}{e^{\log \left(\frac{i}{n}\right)}}}\]
      56.5
    7. Applied add-exp-log to get
      \[\left(\frac{1}{2} \cdot i + 1\right) \cdot \frac{\color{red}{i \cdot 100}}{e^{\log \left(\frac{i}{n}\right)}} \leadsto \left(\frac{1}{2} \cdot i + 1\right) \cdot \frac{\color{blue}{e^{\log \left(i \cdot 100\right)}}}{e^{\log \left(\frac{i}{n}\right)}}\]
      56.5
    8. Applied div-exp to get
      \[\left(\frac{1}{2} \cdot i + 1\right) \cdot \color{red}{\frac{e^{\log \left(i \cdot 100\right)}}{e^{\log \left(\frac{i}{n}\right)}}} \leadsto \left(\frac{1}{2} \cdot i + 1\right) \cdot \color{blue}{e^{\log \left(i \cdot 100\right) - \log \left(\frac{i}{n}\right)}}\]
      56.5
    9. Applied add-exp-log to get
      \[\color{red}{\left(\frac{1}{2} \cdot i + 1\right)} \cdot e^{\log \left(i \cdot 100\right) - \log \left(\frac{i}{n}\right)} \leadsto \color{blue}{e^{\log \left(\frac{1}{2} \cdot i + 1\right)}} \cdot e^{\log \left(i \cdot 100\right) - \log \left(\frac{i}{n}\right)}\]
      56.5
    10. Applied prod-exp to get
      \[\color{red}{e^{\log \left(\frac{1}{2} \cdot i + 1\right)} \cdot e^{\log \left(i \cdot 100\right) - \log \left(\frac{i}{n}\right)}} \leadsto \color{blue}{e^{\log \left(\frac{1}{2} \cdot i + 1\right) + \left(\log \left(i \cdot 100\right) - \log \left(\frac{i}{n}\right)\right)}}\]
      56.5
    11. Applied simplify to get
      \[e^{\color{red}{\log \left(\frac{1}{2} \cdot i + 1\right) + \left(\log \left(i \cdot 100\right) - \log \left(\frac{i}{n}\right)\right)}} \leadsto e^{\color{blue}{\left(\log n + \log 100\right) + \log \left(i \cdot \frac{1}{2} + 1\right)}}\]
      62.5
    12. Applied taylor to get
      \[e^{\left(\log n + \log 100\right) + \log \left(i \cdot \frac{1}{2} + 1\right)} \leadsto e^{\left(\log n + \log 100\right) + \left(\left(\log \frac{1}{2} + 2 \cdot \frac{1}{i}\right) - \left(2 \cdot \frac{1}{{i}^2} + \log i\right)\right)}\]
      35.7
    13. Taylor expanded around inf to get
      \[e^{\left(\log n + \log 100\right) + \color{red}{\left(\left(\log \frac{1}{2} + 2 \cdot \frac{1}{i}\right) - \left(2 \cdot \frac{1}{{i}^2} + \log i\right)\right)}} \leadsto e^{\left(\log n + \log 100\right) + \color{blue}{\left(\left(\log \frac{1}{2} + 2 \cdot \frac{1}{i}\right) - \left(2 \cdot \frac{1}{{i}^2} + \log i\right)\right)}}\]
      35.7
    14. Applied simplify to get
      \[e^{\left(\log n + \log 100\right) + \left(\left(\log \frac{1}{2} + 2 \cdot \frac{1}{i}\right) - \left(2 \cdot \frac{1}{{i}^2} + \log i\right)\right)} \leadsto \frac{\left(\frac{1}{2} \cdot e^{\frac{2}{i}}\right) \cdot \left(100 \cdot n\right)}{i \cdot e^{\frac{\frac{2}{i}}{i}}}\]
      0.4

    15. Applied final simplification

    if 1.5778042482736102e+150 < i

    1. Started with
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
      32.4
    2. Using strategy rm
      32.4
    3. Applied div-inv to get
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\color{red}{\frac{i}{n}}} \leadsto 100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\color{blue}{i \cdot \frac{1}{n}}}\]
      32.4
    4. Applied *-un-lft-identity to get
      \[100 \cdot \frac{\color{red}{{\left(1 + \frac{i}{n}\right)}^{n} - 1}}{i \cdot \frac{1}{n}} \leadsto 100 \cdot \frac{\color{blue}{1 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}}{i \cdot \frac{1}{n}}\]
      32.4
    5. Applied times-frac to get
      \[100 \cdot \color{red}{\frac{1 \cdot \left({\left(1 + \frac{i}{n}\right)}^{n} - 1\right)}{i \cdot \frac{1}{n}}} \leadsto 100 \cdot \color{blue}{\left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{1}{n}}\right)}\]
      32.4
    6. Applied associate-*r* to get
      \[\color{red}{100 \cdot \left(\frac{1}{i} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{1}{n}}\right)} \leadsto \color{blue}{\left(100 \cdot \frac{1}{i}\right) \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{1}{n}}}\]
      32.4
    7. Applied simplify to get
      \[\color{red}{\left(100 \cdot \frac{1}{i}\right)} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{1}{n}} \leadsto \color{blue}{\frac{100}{i}} \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{1}{n}}\]
      32.4

  1. Removed slow pow expressions

Original test:


(lambda ((i default) (n default))
  #:name "Compound Interest"
  (* 100 (/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n)))
  #:target
  (* 100 (/ (- (exp (* n (if (= (+ 1 (/ i n)) 1) (/ i n) (/ (* (/ i n) (log (+ 1 (/ i n)))) (- (+ (/ i n) 1) 1))))) 1) (/ i n))))