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- Erich Neuwirth
- Zeitschr. für OR
- 1982

- Erich Neuwirth
- Discrete Mathematics
- 2001

Many functions in combinatorics follow simple recursive relations of the type F (n, k) = a n−1,k F (n − 1, k) + b n−1,k−1 F (n − 1, k − 1). Treating such functions as (infinite) triangular matrices and calling a n,k and b n,k generators of F , our paper will study the following question: Given two triangular arrays and their generators, how can we give… (More)

- Tudor Antoniu, Paul A. Steckler, Shriram Krishnamurthi, Erich Neuwirth, Matthias Felleisen
- Proceedings. 26th International Conference on…
- 2004

Financial companies, engineering firms and even scientistscreate increasingly larger spreadsheets and spreadsheetprograms. The creators of large spreadsheets makeerrors and must track them down. One common class oferrors concerns unit errors, because spreadsheets often employformulas with physical or monetary units.In this paper, we describe XeLda, our tool… (More)

- Erich Neuwirth, L. Reisinger
- Inf. Syst.
- 1982

- Erich Neuwirth
- 1997

- Erich Neuwirth
- Secondary School Mathematics in the World of…
- 1997

- G. Aydınlı, W. Härdle, E. Neuwirth
- 2003

The use of electronic spreadsheets as the primary software tool for teaching management science modeling techniques and quantitative methods in economics and finance undoubtedly played a key role in the increasing impact of quantitative lectures given in graduate programs. Researchers suggest that the ability to extract data from various sources and embed… (More)

- Erich Neuwirth
- 2007

Many educational programming environments (e.g. Imagine) have facilities to enrich programs with music. In most cases, this programming constructs allow to play simple melodies. It is not easily possible to play more complex music either containing chords or polyphonic structures. On the other hand, some tools (like MSWLogo and FMSLogo) implement low level… (More)

- Erich Neuwirth
- 2001

We present a new package which allows R to produce sound from data. The packages uses Csound, an extremely powerful and freely available multi platform program for sound creation. Sonification is a relatively new branch of data analysis, so even the basic set of concepts is still in flux. Our toolkit hopefully makes research into different options for… (More)

- Erich Neuwirth, Viera K. Proulx
- SIGCSE Bulletin
- 2002

I n this column, we will try to give an overview of computer science activities around the world on high school level. We, the two column editors, are involved in IFIP working groups concerned with computer science in primary and secondary education. We will use our contacts to provide some information about different national and international policies and… (More)