Execution Time2.33s

Test: mathmore-testDerivation (Passed)
Build: PR-4279-x86_64-ubuntu16-gcc54-opt (sft-ubuntu-1604-4) on 2019-11-14 21:01:42
Repository revision: eb9d2d64c365eec560379f62009bcc1579861643

Test Timing: Passed
Processors1

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Test output
Derivative of function inheriting from IGenFunction f(x) = 2 + 3x + 4x^2 at x = 2
Return code:  0
Result:       19 +/- 4.51491e-06
Exact result: 19
EvalForward:  19
EvalBackward: 19

Derivative of a free function f(x) = x^(3/2) at x = 2
EvalCentral:  2.12132
EvalForward:  2.12132
EvalBackward: 2.12132
Exact result: 2.12132

Derivative of a free function wrapped in a Functor f(x) = x^(3/2) at x = 2
EvalCentral:  2.12132
EvalForward:  2.12132
EvalBackward: 2.12132
Exact result: 2.12132

Tes a derivator without a function
GSLDerivator: Error : The function has not been specified
0


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Test derivation performances....

Time using ROOT::Math::Derivator :	0.0881729
42999963.4891696423
Time using ROOT::Math::Derivator(2):	0.087456
42999994.922070168
Time using ROOT::Math::Derivator(3):	0.0519369
42999963.4891696423
Time using TF1::Derivative :		0.184828
42999960.0000026971


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Test derivation performances - using a User function

Time using ROOT::Math::Derivator :	0.10601
-99995.9598531582742
Time using ROOT::Math::Derivator(2):	0.171784
-99995.9541418749432
Time using ROOT::Math::Derivator(3):	0.104473
-99995.9598531582742
Time using TF1::Derivative :		0.151954
-99995.9599830689403
Time using ROOT::Math::Derivator Multi:	0.142591
-99995.9598531582742


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Test derivation performances - using a Gaussian Param function

Time using ROOT::Math::Derivator (1D) :	0.209976
25239.2585945392566
Time using ROOT::Math::Derivator(ND):	0.191465
25239.2585945392566
Time using TF1::ParamGradient:		0.161998
25239.2585944561288