# Rahul Narain

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bio website location age 28 member for 3 years, 4 months seen 1 hour ago profile views 3,877

Almost all of the questions on the front page these days are homework questions or textbook exercises. I think I'll be spending a lot less time here.

# 488 Revisions

 Feb15 revised Geometry question about a triangle in a circle inserted image Feb15 revised optimization in image processing formatting Feb14 revised How to read mathematical formulas? added 35 characters in body Feb13 revised How to calculate the lens distortion coefficients with a known displacement vector field? inserted image Feb13 revised Multiplication of ideals using Arndt's composition algorithm put question in title, changed punctuation, fixed typo Feb13 revised What are some measures of connectedness in graphs? the more precise the better Feb13 revised What are some measures of connectedness in graphs? explained metric 4 a little Feb11 revised name this function deleted 770 characters in body Feb11 revised name this function deleted 770 characters in body Feb11 revised name this function added 1968 characters in body Feb8 revised Overlapping spheres inserted quote from wikipedia Feb8 revised How would I create a exponential ramp function from 0,0 to 1,1 with a single value to explain curvature? added 595 characters in body Feb7 revised How do I prove that two empty sets are equivalent? fixed typo Feb6 revised why does soundness seem to be less important than consistency for the structuralist? add julian's rejected edit (http://math.stackexchange.com/review/suggested-edits/44087) as confirmed by Nick in comments Feb6 revised Derivative at a point (Linear approximation at point)--what is the valid range for approximation? added 13 characters in body; edited title Feb6 revised What does the long '|' mean? the "2x" doesn't need to be so big Feb3 revised Silly optimization question added 284 characters in body Feb3 revised Choosing two random numbers in $(0,1)$ what is the probability that sum of them is more than $1$? added 152 characters in body Feb3 revised Bijective function between $\mathbb R$ and $\mathbb R^\mathbb R$ added 6 characters in body Feb3 revised Is there a counterexample to the claim that if $\mathbf y\cdot\mathbf y=1$ and $\mathbf x\cdot\mathbf y=c$ then $\mathbf x=c\mathbf y$? edited title