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The Maxima on-line user's manual

Algebra Calculator

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Feature

-- Declaration: feature Maxima understands two distinct types of features, system features and features which apply to mathematical expressions. See also status for information about system features. See also features and featurep for information about mathematical features.

feature itself is not the name of a function or variable.

declare(sym_matrix, feature);
declare(W, sym_matrix);
declare(a, sym_matrix);
declare(b, sym_matrix);
a(x) := transpose(W)*x + b;
f(x) := 1 / (1 + exp(-x));
h(x) := f(a(x));
diff(h(x), x[i]);

There are also some inexact matches for feature. Try ?? feature to see them.

(%o1)                                true
(%i2) 

Related Examples