\[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
Test:
Compound Interest
Bits:
128 bits
Bits error versus i
Bits error versus n
Time: 17.0 s
Input Error: 23.5
Output Error: 2.0
Log:
Profile: 🕒
\(\begin{cases} 100 \cdot \frac{(e^{{\left(\sqrt[3]{\log_* (1 + \frac{i}{n})}\right)}^3 \cdot n} - 1)^*}{\frac{i}{n}} & \text{when } i \le -2.1890592f-23 \\ \frac{\left(100 \cdot n\right) \cdot (e^{i} - 1)^*}{i} & \text{when } i \le 2.9389908f-22 \\ 100 \cdot \frac{\frac{(e^{\log_* (1 + \frac{i}{n}) \cdot n} - 1)^*}{i}}{\frac{1}{n}} & \text{when } i \le 5.2930678f+26 \\ \frac{(e^{\frac{\log n - \log i}{n}} - 1)^*}{\frac{\frac{i}{100}}{n}} & \text{otherwise} \end{cases}\)

    if i < -2.1890592f-23

    1. Started with
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
      17.2
    2. Using strategy rm
      17.2
    3. Applied add-exp-log to get
      \[100 \cdot \frac{{\color{red}{\left(1 + \frac{i}{n}\right)}}^{n} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{{\color{blue}{\left(e^{\log \left(1 + \frac{i}{n}\right)}\right)}}^{n} - 1}{\frac{i}{n}}\]
      17.2
    4. Applied pow-exp to get
      \[100 \cdot \frac{\color{red}{{\left(e^{\log \left(1 + \frac{i}{n}\right)}\right)}^{n}} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n}} - 1}{\frac{i}{n}}\]
      17.2
    5. Applied expm1-def to get
      \[100 \cdot \frac{\color{red}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1}}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}}{\frac{i}{n}}\]
      14.1
    6. Using strategy rm
      14.1
    7. Applied add-cube-cbrt to get
      \[100 \cdot \frac{(e^{\color{red}{\log \left(1 + \frac{i}{n}\right)} \cdot n} - 1)^*}{\frac{i}{n}} \leadsto 100 \cdot \frac{(e^{\color{blue}{{\left(\sqrt[3]{\log \left(1 + \frac{i}{n}\right)}\right)}^3} \cdot n} - 1)^*}{\frac{i}{n}}\]
      14.1
    8. Applied simplify to get
      \[100 \cdot \frac{(e^{{\color{red}{\left(\sqrt[3]{\log \left(1 + \frac{i}{n}\right)}\right)}}^3 \cdot n} - 1)^*}{\frac{i}{n}} \leadsto 100 \cdot \frac{(e^{{\color{blue}{\left(\sqrt[3]{\log_* (1 + \frac{i}{n})}\right)}}^3 \cdot n} - 1)^*}{\frac{i}{n}}\]
      1.5

    if -2.1890592f-23 < i < 2.9389908f-22

    1. Started with
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
      29.6
    2. Using strategy rm
      29.6
    3. Applied add-exp-log to get
      \[100 \cdot \frac{{\color{red}{\left(1 + \frac{i}{n}\right)}}^{n} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{{\color{blue}{\left(e^{\log \left(1 + \frac{i}{n}\right)}\right)}}^{n} - 1}{\frac{i}{n}}\]
      29.6
    4. Applied pow-exp to get
      \[100 \cdot \frac{\color{red}{{\left(e^{\log \left(1 + \frac{i}{n}\right)}\right)}^{n}} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n}} - 1}{\frac{i}{n}}\]
      29.6
    5. Applied expm1-def to get
      \[100 \cdot \frac{\color{red}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1}}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}}{\frac{i}{n}}\]
      28.3
    6. Using strategy rm
      28.3
    7. Applied div-inv to get
      \[100 \cdot \color{red}{\frac{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}{\frac{i}{n}}} \leadsto 100 \cdot \color{blue}{\left((e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^* \cdot \frac{1}{\frac{i}{n}}\right)}\]
      28.3
    8. Applied simplify to get
      \[100 \cdot \left((e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^* \cdot \color{red}{\frac{1}{\frac{i}{n}}}\right) \leadsto 100 \cdot \left((e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^* \cdot \color{blue}{\frac{n}{i}}\right)\]
      28.3
    9. Applied taylor to get
      \[100 \cdot \left((e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^* \cdot \frac{n}{i}\right) \leadsto 100 \cdot \left((e^{i} - 1)^* \cdot \frac{n}{i}\right)\]
      10.8
    10. Taylor expanded around 0 to get
      \[100 \cdot \left((e^{\color{red}{i}} - 1)^* \cdot \frac{n}{i}\right) \leadsto 100 \cdot \left((e^{\color{blue}{i}} - 1)^* \cdot \frac{n}{i}\right)\]
      10.8
    11. Applied simplify to get
      \[100 \cdot \left((e^{i} - 1)^* \cdot \frac{n}{i}\right) \leadsto \frac{\left(100 \cdot n\right) \cdot (e^{i} - 1)^*}{i}\]
      0

    12. Applied final simplification

    if 2.9389908f-22 < i < 5.2930678f+26

    1. Started with
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
      24.5
    2. Using strategy rm
      24.5
    3. Applied add-exp-log to get
      \[100 \cdot \frac{{\color{red}{\left(1 + \frac{i}{n}\right)}}^{n} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{{\color{blue}{\left(e^{\log \left(1 + \frac{i}{n}\right)}\right)}}^{n} - 1}{\frac{i}{n}}\]
      24.5
    4. Applied pow-exp to get
      \[100 \cdot \frac{\color{red}{{\left(e^{\log \left(1 + \frac{i}{n}\right)}\right)}^{n}} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n}} - 1}{\frac{i}{n}}\]
      24.5
    5. Applied expm1-def to get
      \[100 \cdot \frac{\color{red}{e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1}}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}}{\frac{i}{n}}\]
      18.5
    6. Using strategy rm
      18.5
    7. Applied div-inv to get
      \[100 \cdot \frac{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}{\color{red}{\frac{i}{n}}} \leadsto 100 \cdot \frac{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}{\color{blue}{i \cdot \frac{1}{n}}}\]
      18.5
    8. Applied associate-/r* to get
      \[100 \cdot \color{red}{\frac{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}{i \cdot \frac{1}{n}}} \leadsto 100 \cdot \color{blue}{\frac{\frac{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}{i}}{\frac{1}{n}}}\]
      18.6
    9. Applied simplify to get
      \[100 \cdot \frac{\color{red}{\frac{(e^{\log \left(1 + \frac{i}{n}\right) \cdot n} - 1)^*}{i}}}{\frac{1}{n}} \leadsto 100 \cdot \frac{\color{blue}{\frac{(e^{\log_* (1 + \frac{i}{n}) \cdot n} - 1)^*}{i}}}{\frac{1}{n}}\]
      5.3

    if 5.2930678f+26 < i

    1. Started with
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}}\]
      30.8
    2. Applied taylor to get
      \[100 \cdot \frac{{\left(1 + \frac{i}{n}\right)}^{n} - 1}{\frac{i}{n}} \leadsto 100 \cdot \frac{e^{\frac{\log n - \log i}{n}} - 1}{\frac{i}{n}}\]
      13.5
    3. Taylor expanded around inf to get
      \[100 \cdot \frac{\color{red}{e^{\frac{\log n - \log i}{n}} - 1}}{\frac{i}{n}} \leadsto 100 \cdot \frac{\color{blue}{e^{\frac{\log n - \log i}{n}} - 1}}{\frac{i}{n}}\]
      13.5
    4. Applied simplify to get
      \[\color{red}{100 \cdot \frac{e^{\frac{\log n - \log i}{n}} - 1}{\frac{i}{n}}} \leadsto \color{blue}{\frac{(e^{\frac{\log n - \log i}{n}} - 1)^*}{\frac{\frac{i}{100}}{n}}}\]
      1.7

  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))))