query: Distance between the foci
positive_passages.docid: 24730
positive_passages.text: A circle has the same center as an ellipse and passes through the foci $F_1$ and $F_2$ of the ellipse, two curves intersect in $4$ points.
negative_passages.docid: 1032
negative_passages.text: What is the reference point that the focal length of a lens is calculated from?
negative_passages.docid: 96691
negative_passages.text: Distance of point $P$ from an ellipse
negative_passages.docid: 52368
negative_passages.text: Does the diameter of the aperture increase with increases in the focal length with constant F-number(F-stops)?
negative_passages.docid: 97636
negative_passages.text: How do I measure distance on a globe?
negative_passages.docid: 151171
negative_passages.text: Distance of nearest zero of an analytic function
negative_passages.docid: 10820
negative_passages.text: What is the formula for percent of frame filled at a specific distance and focal length?
negative_passages.docid: 119071
negative_passages.text: Average Distance Between Random Points on a Line Segment
negative_passages.docid: 154600
negative_passages.text: The extent of closeness
negative_passages.docid: 157572
negative_passages.text: The distance between two sets inside euclidean space
negative_passages.docid: 61637
negative_passages.text: Distance between two coordinates with CoreLocation
negative_passages.docid: 56856
negative_passages.text: Need to calculate distance (Node to Node) along the lines
negative_passages.docid: 107333
negative_passages.text: How to find all the local minima/maxima in a range
negative_passages.docid: 70481
negative_passages.text: Relationship between the the slit width $w$ and source distance $d$
negative_passages.docid: 58495
negative_passages.text: Finding the distance between two guides in Photoshop
negative_passages.docid: 50351
negative_passages.text: Distance between two hyperplanes
negative_passages.docid: 43051
negative_passages.text: Will the silhouette formula change depending on the distance metric?