libqwt5-qt4 5.2.0-1 (i386 binary) in ubuntu karmic

 The Qwt library contains Qt GUI Components and utility classes which
 are primarily useful for programs with a technical background. Most of
 these widgets are used to control or display values, arrays, or ranges
 of type double.
 .
 This package contains the files necessary for running applications that
 use the Qwt library and Qt4.