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doc tweaks for skin
bug fixes for is_matrix, is_vector, and new tests for same
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@@ -36,7 +36,8 @@
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// is_vector([1,1,1],all_nonzero=false); // Returns true
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// is_vector([],zero=false); // Returns false
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function is_vector(v, length, zero, all_nonzero=false, eps=EPSILON) =
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is_list(v) && is_num(v[0]) && is_num(0*(v*v))
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is_list_of(v,1) // is_list(v) && is_num(v[0]) && is_num(0*(v*v))
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&& len(v)>0
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&& (is_undef(length) || len(v)==length)
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&& (is_undef(zero) || ((norm(v) >= eps) == !zero))
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&& (!all_nonzero || all_nonzero(v)) ;
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