W San Francisco. An electric urban retreat in heart of the SoMa district. W San Francisco Hotel is a gathering place for art exhibitions, film screenings, fashion and music events. Bask in panoramic views of the Bay Bridge and the city skyline at W San Francisco, across from the beautiful Yerba Buena Gardens.
It is used, along with significant digits, to indicate the precision of a measurement. Thus, in the two-significant-digit measurement 5.4 0.2 meters, the uncertainty interval is 0.2 meters. This means that the true value of the measurement is believed to lie between 5.2 meters and 5.6 meters.
Indicated by the uncertainty [Bevington, 2], or the fractional (relative) uncertainty [Taylor, 28]. The degree of refinement with which an operation is performed or a measurement stated [Webster].he total uncertainty of a value [Fluke, G-3]. The error [Taylor, 14]. (Taylor does not distinguish between the terms error and uncertainty. ). relative (fractional) uncertainty-the absolute uncertainty divided by the measured value, often expressed as a percentage or in parts per million (ppm) [Taylor, 28; Baird, 14].