The paper deals with the symbolic analysis of linear circuits with modern active elements using the SNAP program. The simulator can perform both classical and approximate analyses. All device models are stored in a text library, which can be easily extended. Device parameters can be defined as simple symbols or as formulae in the netlist. This allows the simulation of electronic circuits both w...

Symbolic objects are the basic elements for knowledge representation in symbolic data analysis. This paper aims to integrate symbolic objects into formal concept analysis in order to compare and tie together both approaches.

In this paper we present a decomposition technique to systematically formulate the state equations in symbolic normal-form for linear and/or nonlinear time-invariant large-scale analog circuits with excess elements. The decomposition and the aggregation procedures are shown and an illustrative example is given. The computation program allows the formulation of state equations in a symbolic form...

the musical symbol is one way of expression among many other ways. it doesn`t directly correspond with meaning or reality. rather, it provides images that are representative of the original. however, symbols goes beyond this and provide deep significant symbolic meanings and visions. mystical poetry has a complex intellectual structure, particularly in arabic and persian literature. hence, musi...

many of the great persian poems have powerful narrative structure and they transfer ideas and concepts from the language of different real or symbolic characters. one poem that is categorized in this field is  chahar chaman, a poem by shahdaie shirzi. this article aims at answering the question that what kind of belief and thought are each of the symbolic characters going to present? and how do...

Signals that represent information may be classified into two forms: numeric and symbolic. Symbolic signals are discrete-time sequences which have a value at any particular index that is a member of a set of symbols. Set membership defines the only mathematical structure that symbolic sequences satisfy. Consequently, symbolic signals cannot be directly processed with existing signal processing ...

We investigate computable subshifts and the connection with effective symbolic dynamics. It is shown that a decidable Π1 class P is a subshift if and only if there is a computable function F mapping 2N to 2N such that P is the set of itineraries of elements of 2N. Π1 subshifts are constructed in 2N and in 2Z which have no computable elements. We also consider the symbolic dynamics of maps on th...