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1. Biology a collection of strands of specialized tissue such as nerve fibres
2. Botany short for vascular bundle
3. Textiles a measure of yarn or cloth; 60 000 yards of linen yarn; 5 or 10 pounds of cotton hanks



in mathematics, a two-parameter family of curves in the plane or in space that are linear functions of the parameters. Suppose F1, F2, and F3 are functions of two variables and none of the functions is a linear combination of the other two. The family of curves in the plane that are determined by the equation

(*) λ1F1 + λ2F2 + λ3F3 = 0

for all possible values of the parameters λ1, λ2, and λ3 (except for the case λ1 = 0, λ2 = 0, and λ3 = 0) constitutes a bundle. Equation (*) is in fact a function of two parameters—that is, of the two ratios λ1: λ2: λ3. In addition, it is immediately apparent that the parameters occur in this equation linearly. The equation of a bundle of surfaces in space is formed analogously. The three equations F1 = 0, F2 = 0, and F3 = 0 yield three elements of the bundle (three curves of three surfaces), which determine the entire bundle.

Bundles are usually considered whose elements are similar in certain respects; examples are a bundle of circles and a bundle of planes. We sometimes also speak of a bundle of lines in space; although the bundle is considered in space, its elements are curves rather than surfaces. Nevertheless, this case can be reduced to the case of a bundle of planes, since the pairwise intersections of elements of a bundle of planes determine a set of lines. In projective geometry, a bundle is understood to mean both sets—lines and planes—at once.


A triple (E, p, B), where E and B are topological spaces and p is a continuous map of E onto B ; intuitively E is the collection of inverse images under p of points from B glued together by the topology of X.


(1) To sell hardware and software as a combined product or to combine several software packages for sale as a single unit. Contrast with unbundle. See bundled software and bundling.

(2) A collection of files that are treated as one. See APP file.
References in periodicals archive ?
Slash Bundling System: John Deere 1490D Slash Bundler
With regard to significant variables, mixed bundling increases the marginal propensity to bundle by 26%, which is smaller than the average proportion of 55% of bundlers using mixed bundling.
Any reporting now is voluntary and sketchy; the Clinton campaign, like others, does not make clear which bundlers have raised $100,000 and which brought in $850,000.
John Deere sales representatives state that there are 40 John Deere 1490D slash bundlers operating in Europe.
The candidates were asked to expand the details released about their bundlers to include city and state, employer and occupation, and make all this information available to the public on their campaign's Web site.
Clinton's campaign voluntarily released a list of her bundlers, so-called "Hillblazers" who have helped raise $100,000 or more in campaign cash for the primary election.
1, 2012 /PRNewswire-USNewswire/ -- Big mortgage bundlers tied to title companies and the real estate lobby is seeking to get Congress to allow home warranty companies to pay now-illegal kickbacks to real estate brokers under last minute Congressional legislation.
Candidates and regulated bundlers do not have to disclose bundling, nor does it have to be specified on campaign finance reports filed during and after campaigns.
id=N00009638) 77 bundlers -- fundraisers who collect donations from friends and associates before delivering large checks to candidate in one "bundle" -- from the securities and investment sector, compared with more than 90 in 2008.
Ted Cruz seeks to harness new weapon in 2016 money race: Small-dollar bundlers, The Washington Post
With the midterms over, Christie and Bush have begun pushing top bundlers to commit to them in advance should they announce a White House bid, according to several donors, putting intense pressure on the corps of contributors who helped Romney and the Republican Party raise a billion dollars for the 2012 campaign.
But federal law only requires campaigns to name bundlers who are also registered lobbyists.