Accessibility

This is the accessibility statement for Function Grapher.
If you have any questions or comments, please contact us.

 

Access keys

Most browsers support jumping to specific links by typing keys defined on the web site.

  • On Windows, you can press Alt + an access key
  • On Macintosh, you can press Control + an access key

 
All pages on this site define the following access keys:

  • Access key  1  : Home page
  • Access key  2  :
  • Access key  3  :
  • Access key  4  :
  • Access key  5  :
  • Access key  6  : Contact Us
     
  • Access key  0  : Accessibility statement

 

Standards compliance

All web pages are Bobby AAA approved, and comply with all priority 1 guidelines of the W3 Web Content Accessibility Guidelines.

All web pages are Section 508 approved, and are validated with Bobby to comply with all guidelines of the U.S. Federal Government Section 508 Guidelines.

All web pages validate as XHTML 1.0 Transitional and CSS2, and use structured semantic markup.

 

Links

Many links have title attributes which describe the link in greater detail, unless the text of the link already fully describes the target.

Whenever possible, links are written to make sense out of context. Many browsers (such as JAWS, Home Page Reader, Lynx, and Opera) can extract the list of links on a page and allow the user to browse the list, separately from the page.

Link text is never duplicated; two links with the same link text always point to the same address.

There are no "javascript:" pseudo-links. All links can be followed in any browser, even if scripting is turned off.

There are no links that open new windows without warning.

 

Images

All content images used in pages include descriptive ALT attributes. Purely decorative graphics include null ALT attributes.

 

Visual design

This site uses Cascading Style Sheets (CSS) for visual layout.

This site uses only relative font sizes, compatible with the user-specified "text size" option in visual browsers.
If you are using Internet Explorer, for example, you can make your default text size larger under the View menu by selecting Text Size, Larger (or Largest).

If your browser or browsing device does not support stylesheets at all, the content of each page is still readable.

Older browsers get the "no stylesheet" treatment by default, because their support for CSS is so poor.
If you are still using one of these old browsers, find out how you can upgrade to a better Web browsing experience.

 

Acronyms and abbreviations

Due to its technical nature, this site can make use of many acronyms and abbreviations.

We try to define each instance with the appropriate HTML tag.

 

Accessibility references

 

Accessibility software

  • JAWS, a screen reader for Windows. A time-limited, downloadable demo is available.
  • Home Page Reader, a screen reader for Windows. A downloadable demo is available.
  • Lynx, a free text-only web browser for blind users with refreshable Braille displays.
  • Links, a free text-only web browser for visual users with low bandwidth.
  • Opera, a visual browser with many accessibility-related features, including text zooming, user stylesheets, image toggle. A free downloadable version is available. Compatible with Windows, Macintosh, Linux, and several other operating systems.