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Questions tagged [parametric-equations]

A parametric equation is a mathematical definition of a set of values defined by a function of one or several parameters. They are frequently used for defining curves by using a parametrized function defining the coordinates of the curve's points.

A parametric equation is a mathematical definition of a set of values defined by a function of one or several parameters. They are frequently used for defining curves by using a parametrized function defining the coordinates of the curve's points.

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Parametric Matrix Multiplication

Does matlab supports such multiplication?? I searched a lot and find these >> X = @(a1,a2,a3,a4)[a1 a2;a3 a4]; >> Y = @(b1,b2,b3,b4)[b1 b2;b3 b4]; >> % Something like ==> X*Y But this just solves an equation with "value" and does not solve…
Mehdi Khademloo
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Polar Rose 2D offset

I'm having some trouble trying to plot a polar rose with a offset C of the equation r(theta) = cos(k*theta) + C. I'm trying to plot this polar rose: http://en.wikipedia.org/wiki/Polar_coordinate_system#/media/File:Cartesian_to_polar.gif The polar…
Vinícius Pacheco Vieira
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Programming a smooth cone in matlab

I'm trying to program a smooth(?) cone in matlab where z = x^2+y^2 x^2+y^2 = C C = [1 1.4 1.7 2 2.2] I've already realised I should use polar coordinates since it's a circular figure clear all, clc, clf theta = linspace(0,2*pi,1000) r = [1 1.4…
NoeZ1
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Parametric plot of solution of 2x2 diff. system in python, Mathematica

I've implemented a solution to the following system of equations dy/dt = -t*y(t) - x(t) dx/dt = 2*x(t) - y(t)^3 y(0) = x(0) = 1. 0 <= t <= 20 firstly in Mathematica and afterwards in Python. My code in Mathematica: s = NDSolve[ {x'[t] == -t*y[t] -…
milia
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Parametric curve on data points - Gnuplot

I'm new to gnuplot and after some research, it looks like nobody already raised this question. I have a data file with x,y points : x1, y1 x2, y2 .. and I want to plot a parametric curve on each of these points. The parametric curves might be…
user3128114
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Poor quality rendering of parametric curve in Processing (Java)

Using Processing 2.0b6 on a Windows 7 PC, I've grokked some GeoGebra code^ to write a sketch that plots a parametric curve (the example I've been playing with is a cardioid). It does this by generating a point distribution that is 'curvature aware'.…
svenpables
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How map/tween a number based on a dynamic curve

I am really lacking terminology here, so any help with that appreciate. Even it doesn't answer the question it can hopefully get me closer to an answer. How can I get y from a function of p where the curviness is also a variable (possible between 0…
Ross
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Parametric Expression of a Bezier Curve

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 unfortunately (and obviously) it doesn't correlate…
Old Name
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Is there a way to get a parametric solution to matrix using matrix solver from some lin. algebra java library?

All the matrix solvers I've come across require the matrices to be square and invertible, but what about matrices that are not square and have multiple solutions...how would I go about finding a parametric form of this using java?
Skorpius
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How would one write the parametric function r=e ^cos(θ) −2cos(4θ)+sin ^5 ( θ/12) in Python?

I've tried a few formats and ideas, but the syntax is kind of confusing. Help is appreciated, danke.
KarlMarxsDog
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