We present iScale, a survey tool for the retrospective elicitation of longitudinal user experience data. iScale aims to minimize retrospection bias and employs graphing to impose a process during the reconstruction of one’s experiences. Two versions, the constructive and the value-account iScale, were motivated by two distinct theories on how people reconstruct emotional experiences from memory...

This paper explores the use of powerful, free computer algebra system (CAS) software for the K-12 and university science, technology, engineering and mathematics (STEM) classrooms. Educational institutions are sorely in need of affordable technology. The financial reality facing many schools prohibits the allocation of limited resources for appropriate mathematical software. The free mathematic...

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran kontekstual berbantuan graphing calculator dalam matematika di kelas VIII MTs Nurus Salam terhadap kemampuan pemecahan masalah matematis. Desain yang digunakan penelitian adalah Quasi Experimental Design. Populasi yaitu jumlah seluruh Deli Tua berjumlah 240 siswa. Sampel siswa VIII-2 sebagai eksperimen dan VIII-4 control deng...

SUMMARY NAViGaTOR is a powerful graphing application for the 2D and 3D visualization of biological networks. NAViGaTOR includes a rich suite of visual mark-up tools for manual and automated annotation, fast and scalable layout algorithms and OpenGL hardware acceleration to facilitate the visualization of large graphs. Publication-quality images can be rendered through SVG graphics export. NAViG...

We prove that every 2d-regular unimodular random network carries an invariant Schreier decoration. Equivalently, it is the coset graph of subgroup free group F d . As a corollary we get graphing local isomorphic image coming from p.m.p. action

in this paper we define a new labeling called skolem odd difference mean labeling and investigate skolem odd difference meanness of some standard graphs. let g = (v,e) be a graph with p vertices and q edges. g is said be skolem odd difference mean if there exists a function f : v (g) → {0, 1, 2, 3, . . . , p + 3q − 3} satisfying f is 1−1 and the induced map f : e(g) → {1, 3, 5, . . . , 2q−1} d...

This paper presents a critique of a web-based program to support tertiary students' mathematical needs. The program was designed to provide students a range of learning experiences in order to enhance their understanding of mathematical content and concepts, through the use of the graphics calculator (speci cally the Hewlett Packard HP 38G). The content of the learning material was developed to...

A function reader is a program that can read an input function and evaluate the function for a given input value at run time. Any Computer Algebra System and Graphing Calculator are function readers. Evaluation of a given function is often done by using a function reader. However, any Computer Algebra System or Graphing Calculator is costly. As the world is connected by the Internet, would that...

Interpretation and understanding of complex scientific data is enhanced by graphic representation. Haptic display of such graphical data adds kinesthetic feedback that further improves, or allows conceptualization. In this paper, we present a method for the haptic display of two dimensional data plots using a three degree of freedom force feedback device linked to a speech synthesizer to aid in...