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MathRehab's Channel
MathRehab
Joined: October 05, 2008
Last Sign In: 1 month ago
Videos Watched: 1,144
Subscribers: 22
Channel Views: 1,258

Age: 61
Country: Sweden
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Videos (233)
Spiral Schrittmass
3:48
[TRANSLATED] Spiral Schrittmass
[TRANSLATED] Spiral Schrittmass
A projective construction, which I will explain later
8 months ago 179 views MathRehab
Isometry of a non-degenerated geometry
Added
1:52
[TRANSLATED] Isometry of a non-degenerated ge...
[TRANSLATED] Isometry of a non-degenerated geometry
The blue point is mapped to the purple point by an isometry, which is a projective...
no rating 8 months ago 146 views MathRehab no rating
Complete Quadrangle
0:48
[TRANSLATED] Complete Quadrangle
[TRANSLATED] Complete Quadrangle
The four (blue) points are called a complete quadrangle. They generate six (blue) ...
8 months ago 46 views MathRehab
Taylor expansion of orders 1 and 2
0:14
[TRANSLATED] Taylor expansion of orders 1 and 2
[TRANSLATED] Taylor expansion of orders 1 and 2
z = f(x, y) = x^3 + y^3
8 months ago 126 views MathRehab
Another trigonometric inequality - in polar coordinates
0:14
[TRANSLATED] Another trigonometric inequality...
[TRANSLATED] Another trigonometric inequality - in polar coordinates
cos(r sin(theta/n)) lessThan sin(n cos(r/theta) (animated in the Graphing Calcul...
8 months ago 190 views MathRehab
A trigonometric inequality - in polar coordinates
0:14
[TRANSLATED] A trigonometric inequality - in ...
[TRANSLATED] A trigonometric inequality - in polar coordinates
r sin(theta/n) lessThan theta cos(nr)
8 months ago 100 views MathRehab
Ordinary differential equation 1
0:14
[TRANSLATED] Ordinary differential equation 1
[TRANSLATED] Ordinary differential equation 1
The equation dy/dx = n siny - x (animated in the Graphing Calculator)
8 months ago 145 views MathRehab
Dupin Cyclide Wave-front 2
0:14
[TRANSLATED] Dupin Cyclide Wave-front 2
[TRANSLATED] Dupin Cyclide Wave-front 2
Showing how a Dupin cyclide wave-front intersects itself along the degenerated foc...
no rating 8 months ago 100 views MathRehab no rating
Trig-slide-22
0:14
[TRANSLATED] Trig-slide-22
[TRANSLATED] Trig-slide-22
Just a trigonometric inequality - expressed in Ron Avitzur's magical software "The...
8 months ago 21 views MathRehab
Channel Comments (2)
JYang115 (9 months ago)
good stuff Ambjörn Naeve
guyjohn59 (9 months ago)
Great videos, thanks.