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"Fix" vector*->matrix bug in bessjs test suite #24

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Oct 14, 2015
Merged

"Fix" vector*->matrix bug in bessjs test suite #24

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94 changes: 45 additions & 49 deletions private/numerics/functions/bessjs.rkt
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Original file line number Diff line number Diff line change
Expand Up @@ -68,12 +68,7 @@
(require rackunit
rackunit/text-ui
(only-in mechanics π/2 π 3π/2 2π)
(only-in math/matrix
matrix
vector*->matrix
matrix-num-rows
matrix-num-cols
matrix-ref)
math/matrix
(only-in racket/vector vector-map)
(only-in racket/format ~a)
(only-in racket/list range))
Expand All @@ -82,46 +77,47 @@
(test-suite
"Test suite for bessel functions of integer order"
(test-case
"Output matches wolfram alpha."
(let* ([max-bessel-order 4]
[input-values (vector π/2 π 3π/2 2π)]
[wolfram-alpha-output
(matrix
[[0.4720012157682347674476683878725009623642404480476665
0.5668240889058739377112449634671602835403174155414899
0.2497016291352035437004568140598349286692444512504045
0.0690358882935960517681315419235345127865894136174168
0.0139960398087738087561476475928853212701258364902632]
[-0.30424217764409386420203491281770492396965053478389
0.2846153431797527573453105996861314057098111818494657
0.4854339326315091097054957161831892378519525806986894
0.3334583362029895353902185817398867483022440044539132
0.1514245776313497107537095593154838070387599251684023]
[-0.26585724995832447634200508572810409283585670423879
-0.28165790875051959437304046973269013136918561636253
0.1463179207888012887168984214355549137790433534568295
0.4058564173183388935941409692546731240060510655130263
0.3704345192254447209477698577857675960813567380242590]
[0.2202769085399344622768816507208408344549146363474951
-0.21238253007636905220285865567108499622725602585368
-0.28788036751596899440312761555263523520769185918393
0.0291121960392572124902717611029454518524876804952073
0.3156804669394174890804788139717018390997948930552267]])]
[actual-output
(vector*->matrix
(vector-map (λ (input-value)
(list->vector (bessjs max-bessel-order
input-value)))
input-values))])
(for* ([i (in-range (matrix-num-rows actual-output))]
[j (in-range (matrix-num-cols actual-output))])
(let ([actual (matrix-ref actual-output i j)]
[expected (matrix-ref wolfram-alpha-output i j)])
(check-= actual
expected
8e-14
(~a "Value of bessel J of order " j
" at input value " (vector-ref input-values i)
" does not match Wolfram Alpha. "
"Got: " actual
". Expected: " expected)))))))))
"Output matches wolfram alpha."
(let* ([max-bessel-order 4]
[input-values (vector π/2 π 3π/2 2π)]
[wolfram-alpha-output
(matrix
[[0.4720012157682347674476683878725009623642404480476665
0.5668240889058739377112449634671602835403174155414899
0.2497016291352035437004568140598349286692444512504045
0.0690358882935960517681315419235345127865894136174168
0.0139960398087738087561476475928853212701258364902632]
[-0.30424217764409386420203491281770492396965053478389
0.2846153431797527573453105996861314057098111818494657
0.4854339326315091097054957161831892378519525806986894
0.3334583362029895353902185817398867483022440044539132
0.1514245776313497107537095593154838070387599251684023]
[-0.26585724995832447634200508572810409283585670423879
-0.28165790875051959437304046973269013136918561636253
0.1463179207888012887168984214355549137790433534568295
0.4058564173183388935941409692546731240060510655130263
0.3704345192254447209477698577857675960813567380242590]
[0.2202769085399344622768816507208408344549146363474951
-0.21238253007636905220285865567108499622725602585368
-0.28788036751596899440312761555263523520769185918393
0.0291121960392572124902717611029454518524876804952073
0.3156804669394174890804788139717018390997948930552267]])]
[actual-output
(vector*->matrix
(vector-map (λ (input-value)
(list->vector (bessjs max-bessel-order
input-value)))
input-values))
])
(for* ([i (in-range (matrix-num-rows actual-output))]
[j (in-range (matrix-num-cols actual-output))])
(let ([actual (matrix-ref actual-output i j)]
[expected (matrix-ref wolfram-alpha-output i j)])
(check-= actual
expected
8e-14
(~a "Value of bessel J of order " j
" at input value " (vector-ref input-values i)
" does not match Wolfram Alpha. "
"Got: " actual
". Expected: " expected)))))))))