math software (3 products)

DPlot 1.971 (Shareware, $32.00)

DPlot is a general purpose plotting program designed for scientists, engineers, and students. It features multiple scaling types, including linear, logarithmic, and probability scales, as well as several special purpose graphs: tripartite grids (shock spectra), grain size distribution plots, polar plots, contour plots of 3D data, and box-and-whisker plots and dot graphs of one or more 1D samples. Manipulation functions include FFT, filtering, and smoothing. Data can be input via a variety of file formats, copied from the clipboard, sent to DPlot from another program via dynamic data exchange, or generated by formula. Source code for example Visual Basic and C demo driver programs are included.

Fraction Shape-Up 1.00 (Shareware, $35.00)

Fraction Shape-Up introduces fraction concepts and helps students develop skills necessary for understanding and working with fractions. Students start with an assessment and receive immediate instructional feedback throughout. Step-by-step tutorials, which introduce each unit, can be referred to during practice. The program is self-paced and self-monitored. Students advance as they demonstrate readiness. Scores are tracked in a record management system that allows teachers to view and print detailed reports. Designed for students in U.S. grades 3 through 5 (ages 8 and up), the software can also be used by older students.

SciWriter 1.9.8.15 (Shareware, $39)

SciWriter 1.9 is an XML-based scientific editor that completely integrates writing mathematics and text in the same environment. The native document format is a subset of XHTML 1.1 and MathML 2.0 Presentation Markup.