Suppose that (x(t),y(t)) has polar coordinates(√t,2πt). Plot (x(t),y(t)) for t∈[0,10]. There is no proper function in R to plot with polar coordinates. I tried normal plot by giving, x=√t & y=...

I have a 3D parametric curve defined as P(t) = [x(t), y(t), z(t)]. I'm looking for a function to reparametrize this curve in terms of arc-length. I'm using OpenSCAD, which is a declarative languag...

I have experimental data of the form (X,Y) and a theoretical model of the form (x(t;*params),y(t;*params)) where t is a physical (but unobservable) variable, and *params are the parameters that I w...

I'm currently implementing a Recurrent Neural Network (RNN) called Echo State Network (ESN) in python for Time Series Classification (TSC). I want to generate trajectories using parametric equati...

I have used the Parametric Expression of a Bezier Curve to locate a point along my curve and it's working as it should. The problem is I'm setting my t value as the percentage of the y axis and unf...

I have a line with point a, (6, 12) and point b (45, 18). To describe this line using vectors, the equation is L = [6, 12] +t [39, 6] How would I go about finding the normal to this line? ...

I have the following survreg model: Call: survreg(formula = Surv(time = (ev.time), event = ev) ~ age, data = my.data, dist = "weib") Value Std. Error z p (Intercept) 4.0961 0.5566 7.36 1.86e-1...

Possible Duplicate: Equation-driven smoothly shaded concentric shapes How could I plot a symmetrical heart in R like I plot a circle (using plotrix) or a rectangle? I'd like code fo...

Background Looking to create interesting video transitions (in grayscale). Problem Given equations that represent a closed, symmetrical shape, plot the outline and concentrically shade the shape...