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Created with Raphaël 2.2.018Apr1110865432131Mar2928172Feb31Jan3028262423222119171413109514Dec1319Nov1087519Oct181473Sep2131Aug17151311May29Apr282726232221191528Mar2322181714131098726Feb191817161513121110965421Jan191323Oct2221191513824Sep19Aug526May17126530Apr29282723222120191817Implement the derivative of a gfe function value wrt the coefficients.more cleanupminor cleanupadd method to compute gfe function gradient by a finite-difference approximationrename method assembleHessian of AverageDistanceAssembler to assembleEmbeddedHessian, to make clearer what it doesavoid a few signed/unsigned compiler warningsmethod to compute the actual Hesse matrix. For some strange reason this slows down convergence, rather than speeding it up. to be investigatedremove some debug codeuse more test points for testing the derivatives of function valuesmore digits for the screen outputtest the derivative of the values wrt the coefficientsuse fd approximation provided by the LocalGFEFunctiontest the third derivative of the squared distance wrt the second argumentadd methods axpy and left-multiplication by a FieldMatrixadd method for the third derivative of the squared distance wrt the second argumentremove some unused codecheck the energy gradient using an fd approximationuse a higher-order quadrature ruleadd a method with an fd approximation of the derivative of the function gradient. only for testing purposesadd contraction of a tensor with a matrix through the third indexrename a variable to match the notation in my articleabort if the number of coefficients is not correctreplace a few tabs by spacesbugfix: forgot a factormake code more modulara more systematic creation of test functionsremove 'test' for the Hesse matrix -- it doesn't actually test anythingmake compile againMove the MultiIndex class into a separate filetest for 1d domains as wellprint the domain dimension for each test suiteupdate list of ignored fileswrite the gfe corner values when an error is detectedAdd warnings that the methods computeTotalForceAndTorque and computeAveragePressure are buggy.bugfix in computeAveragePressure: use the proper embedding of intersections into elements when integrating over the boundaryremove some hard-wired two-dimensionalityreally make the domain dimension a parametermake the test less dependent on the dimension of the reference simplexbugfix: use correct type for coordinates on the unit sphereImplement test for the derivative of function gradients wrt coefficients.