German-English translations for argumentation

argument
us
Parameters are like labeled fillable blanks used to define a function whereas arguments are passed to a function when calling it, filling in those blanks.The altitude is the argument of the refraction.
argumentationHis chain of argumentation is flawed.Their argumentation continued long into the night.

demonstration
us
I have to give a demonstration to the class tomorrow, and Im ill-prepared.
rationaleThe rationale seems rather specious to me, and so we are in favour of keeping this item on the agenda. Ich finde diese Argumentation ziemlich scheinheilig, daher sind wir dafür, diesen Punkt auf der Tagesordnung zu belassen.
reasoning
us
Where are we going with this type of reasoning? Wo führt diese Argumentation hin? I cannot follow this reasoning. Einer solchen Argumentation kann ich nicht folgen. We find this reasoning unacceptable. Diese Argumentationsweise halten wir für inakzeptabel.