The Nematrian online software toolkit
[this page | pdf | back links]
Calculator | Function library | Spreadsheet
library | HMTL/CSS/JavaScript
Tutorial | Miscellaneous
To complement its other
business activities, Nematrian makes available through its website a wide range
of accurate, efficient and well-documented online analytical tools. The website
also contains extensive material on HTML, CSS and JavaScript.
Our software toolkit has
the following characteristics:
Breadth and Depth
There are more than 700
functions already available in the Nematrian website toolkit. They include
many financially orientated functions as well as a wide range of more generally
applicable mathematical and statistical functions and tools, including tools
for plotting results.
Easy accessibility
You can access the
tools interactively, if this suits your needs best
Each function has an
associated page on this website documenting what the function does and allowing
you to run the function interactively, if you wish. You can also access all the
functions using our online
calculator (our “expression evaluation” tool), nesting function calls if
you so wish.
As explained in the
website introduction,
interactive results are typically provided as hyperlinks that have embedded
within them details of the underlying parameters used. For example the
following graphical results obtained interactively using the Nematrian toolkit
illustrate the chi-squared distribution. If you click on either chart it will
take you to the page used to create that chart, pre-populated with the
parameters used to do so.
Or, you can access the
tools through spreadsheets (or more sophisticated programming environments), if
you want to carry out more advanced manipulations.
To make it as easy as
possible to use our toolkit in more advanced settings we provide example
spreadsheets which illustrate sets of related tools, see here. The VBA
code that these spreadsheets use to access the Nematrian website provides a
full Application Programming Interface (API) for the toolkit. Similar
approaches can be used to access the tools through many other more sophisticated programming
environments.
Affordability
We currently operate a
tiered approach to usage. Anyone can use most of the tools interactively in
moderation without charge, although tools accessed through the free of charge
route may run more slowly than those that are accessed on a paid for basis. The
more sophisticated tools (or ones consuming more than a certain amount of
processor power) are available on a subscription basis. Please contact us for more details
of our subscription arrangements including pricing.
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