Average Error: 0.0 → 0.1
Time: 24.4s
Precision: 64
Internal Precision: 128
\[\left(0.5 \cdot \cos re\right) \cdot \left(e^{-im} + e^{im}\right)\]
\[\frac{\left({\left(\frac{0.5}{e^{im}}\right)}^{3} + {\left(0.5 \cdot e^{im}\right)}^{3}\right) \cdot \cos re}{\left(0.5 \cdot e^{im} - \frac{0.5}{e^{im}}\right) \cdot \left(0.5 \cdot e^{im}\right) + \frac{0.5}{e^{im}} \cdot \frac{0.5}{e^{im}}}\]

Error

Bits error versus re

Bits error versus im

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[\left(0.5 \cdot \cos re\right) \cdot \left(e^{-im} + e^{im}\right)\]
  2. Initial simplification0.0

    \[\leadsto \left(\frac{0.5}{e^{im}} + 0.5 \cdot e^{im}\right) \cdot \cos re\]
  3. Using strategy rm
  4. Applied flip3-+0.1

    \[\leadsto \color{blue}{\frac{{\left(\frac{0.5}{e^{im}}\right)}^{3} + {\left(0.5 \cdot e^{im}\right)}^{3}}{\frac{0.5}{e^{im}} \cdot \frac{0.5}{e^{im}} + \left(\left(0.5 \cdot e^{im}\right) \cdot \left(0.5 \cdot e^{im}\right) - \frac{0.5}{e^{im}} \cdot \left(0.5 \cdot e^{im}\right)\right)}} \cdot \cos re\]
  5. Applied associate-*l/0.1

    \[\leadsto \color{blue}{\frac{\left({\left(\frac{0.5}{e^{im}}\right)}^{3} + {\left(0.5 \cdot e^{im}\right)}^{3}\right) \cdot \cos re}{\frac{0.5}{e^{im}} \cdot \frac{0.5}{e^{im}} + \left(\left(0.5 \cdot e^{im}\right) \cdot \left(0.5 \cdot e^{im}\right) - \frac{0.5}{e^{im}} \cdot \left(0.5 \cdot e^{im}\right)\right)}}\]
  6. Using strategy rm
  7. Applied distribute-rgt-out--0.1

    \[\leadsto \frac{\left({\left(\frac{0.5}{e^{im}}\right)}^{3} + {\left(0.5 \cdot e^{im}\right)}^{3}\right) \cdot \cos re}{\frac{0.5}{e^{im}} \cdot \frac{0.5}{e^{im}} + \color{blue}{\left(0.5 \cdot e^{im}\right) \cdot \left(0.5 \cdot e^{im} - \frac{0.5}{e^{im}}\right)}}\]
  8. Final simplification0.1

    \[\leadsto \frac{\left({\left(\frac{0.5}{e^{im}}\right)}^{3} + {\left(0.5 \cdot e^{im}\right)}^{3}\right) \cdot \cos re}{\left(0.5 \cdot e^{im} - \frac{0.5}{e^{im}}\right) \cdot \left(0.5 \cdot e^{im}\right) + \frac{0.5}{e^{im}} \cdot \frac{0.5}{e^{im}}}\]

Runtime

Time bar (total: 24.4s)Debug logProfile

BaselineHerbieOracleSpan%
Regimes0.10.10.10.00%
herbie shell --seed 2018351 
(FPCore (re im)
  :name "math.cos on complex, real part"
  (* (* 0.5 (cos re)) (+ (exp (- im)) (exp im))))