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Added Forward Euler to Haskell #215

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Merged
merged 6 commits into from
Jul 8, 2018
Merged

Added Forward Euler to Haskell #215

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da1a022
Added Forward Euler in Haskell
Thurii Jul 4, 2018
eb1cd8d
Add explicit types and apply hindent
Thurii Jul 4, 2018
537be2c
Generalize solveEuler and checkResults
Thurii Jul 5, 2018
78ed76a
Further generalize checkResult and slim down solveEuler
Thurii Jul 6, 2018
0dd8148
Move timestep over to solveEuler
Thurii Jul 7, 2018
1a39112
Fix Typo
Thurii Jul 8, 2018
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Fix Typo
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@Thurii
Thurii committed Jul 8, 2018
commit 1a391128f9625040aa5b24c4f64b41e918c374ad
2 changes: 1 addition & 1 deletion chapters/differential_equations/euler/code/haskell/euler.hs
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Expand Up @@ -13,7 +13,7 @@ main =
let timestep = 0.01
n = 100
threshold = 0.01
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@lulucca12 lulucca12 Jul 5, 2018

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adding a value for accFun:

accFun x = x - 3 * x * timestep
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@lulucca12 lulucca12 Jul 5, 2018

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Sould the acceleration function be:

accFun x = -3 * x
checkResult' = checkResult threshold $ exp . (\x -> x - 3 * x * timestep)
checkResult' = checkResult threshold $ exp . (\x -> -3 * x * timestep)
in putStrLn $
if checkResult' (take n $ solveEuler kinematics timestep 1)
then "All values within threshold"
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