Evgenij-Gr

#! /usr/bin/python

# We lay sides of image parallel to axi of planes
# Bigger side of image maps to bigger side of rect
# On images we always have X ~ Width, Y ~ Height (it is true for OpenCV)
def PlaneToImage(Point, LTCorner, RBCorner, resW, resH):
    assert(not resW==resH)
    if (resW > resH):
        if (abs(LTCorner[0]-RBCorner[0]) > abs(LTCorner[1]-RBCorner[1])):
            OnImgX, OnImgY = 0, 1

Evgenij-Gr

import numpy as np
import math as m

# we assume that line is parameterized by values from segment [0, 1] placed uniformly
# startPoint, endPoint - 2D point
# nSteps - integer value
# vectorField - function that takes 2D point and return 2D vector
def checkStraightLineForTransversality(startPoint, endPoint, nSteps, vectorField):
	tangentVector = endPoint - startPoint
	normalVector = np.array([-tangentVector[1], tangentVector[0]])

Evgenij-Gr

import numpy as np
import math as m

# calculates point of parameterized curve
# accepts parameterization interval, parameterization function
# and discretization step
def ezLinePlot(Boundaries, CurveParametrization, Steps):
    left, right = Boundaries
    curveParamPoints = np.linspace(left, right, Steps)
    curvePoints = [CurveParametrization(t) for t in curveParamPoints]

Evgenij-Gr

Первое преобразование 

$$ e'_{x/y/z} = {\rm Rodr}_{\langle \phi_1, e_z \rangle} (e_{x/y/z}) $$
$$ v' = {\rm Rodr}_{\langle \phi_1, e_z \rangle} (v) $$

Второе преобразование

$$ e''_{x/y/z} = {\rm Rodr}_{\langle \phi_2, e'_y \rangle} (e'_{x/y/z}) $$
$$ v'' = {\rm Rodr}_{\langle \phi_2, e'_y \rangle} (v') $$

Evgenij-Gr

Evgenij-Gr

Table of Contents

• July 2017
  • Equadiff 2017
• August 2017
  • The 8th International Conference on Differential and Functional Differential Equations Moscow, Russia, August 13–20, 2017
  • 3rd INTERNATIONAL CONFERENCE ON SYMMETRIES, DIFFERENTIAL EQUATIONS AND APPLICATIONS 14-17 AUGUST 2017 Centenary of Noether's Theorem
• September 2017
• CRITICS Summer meeting 2017

Evgenij-Gr

Evgenij-Gr

Table of Contents

• January
  • Conference name
• February
  • Современные проблемы математики и ее приложений Международная (49-я Всероссийская) молодежная школа-конференция
• March
• Critical Transitions in Complex Systems: Mathematical theory and applications, 4th Workshop and Winter School

Evgenij-Gr

January

Topological methods in dynamics and related topics

Website: https://nnov.hse.ru/en/bipm/topmethods/2019/

Where: Nizhny Novgorod, Russia

When: January 3-6, 2019

Evgenij-Gr

January

Conference name

Website: address

Where: city, country

When: Month Days, Year