Top "Curve" questions

In mathematics, a curve (also called a curved line in older texts) is, generally speaking, an object similar to a line but which is not required to be straight.

Plotting a polynomial in Python

I am new to Python plotting apart from some basic knowledge of matplotlib.pyplot. My question is how to plot …

python numpy matplotlib curve
In Scipy how and why does curve_fit calculate the covariance of the parameter estimates

I have been using scipy.optimize.leastsq to fit some data. I would like to get some confidence intervals on …

python scipy curve
Compute the 'elbow' for a curve automatically and mathematically

One example for curve is shown as below. The elbow point might be x=3 or 4. How to compute the elbow …

math curve
How to use the D3 diagonal function to draw curved lines?

I looked at sample http://bl.ocks.org/mbostock/raw/4063570/: It produces nice merged lines from source target from left …

javascript svg d3.js curve
Simple Curve Fitting Implimentation in C++ (SVD Least Sqares Fit or similar)

I have been scouring the internet for quite some time now, trying to find a simple, intuitive, and fast way …

c++ curve
svg multiple color on circle stroke

I want to create a rainbow circle, like the picture below: How can I draw the curved and multiple color …

svg colors gradient curve
Draw a quadratic Bézier curve through three given points

I have three points in 2D and I want to draw a quadratic Bézier curve passing through them. How …

math bezier curve quadratic
How do i smooth the curves(contours) in OpenCV?

I am working on a black&white image just like the first one from the link : http://imageshack.us/…

opencv curve smoothing
Find bezier control-points for curve passing through N points

Considering the following nice solution for finding cubic Bézier control points for a curve passing through 4 points: How to …

bezier points curve curve-fitting
How to find the normal vector at a point on a curve in MatLab

I have a curve and I want to find the normal vector at a given point on this curve, later …

matlab gradient curve normals