[MBDyn-users] About the definition of the Jacobian matrix during the initial assembly phase

Resch Reinhard Reinhard.RESCH at accomp.it
Tue Apr 3 10:56:53 CEST 2012

Dear Mr. Masarati,

Let us assume the contribution of an element to the residual in InitialAssRes would be:

Res = f(x)

Is it correct, that the contribution to the Jacobian matrix in InitialAssJac is:

Jac = -\frac{\partial f(x)}{\partial x}

Best regards,

Reinhard Resch

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