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Jon Bjornstad
11/15/17
Re: Which constructions to include?
Your site is rather nice for all the constructions it includes. A lot of work you put into it! I do,
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Re: Which constructions to include?
Your site is rather nice for all the constructions it includes. A lot of work you put into it! I do,
11/15/17
Pradnesh
8/20/17
Re: Euclidean problem
> Hi, > > I've some troubles trying to prove this problem: > > Given a square (
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Re: Euclidean problem
> Hi, > > I've some troubles trying to prove this problem: > > Given a square (
8/20/17
Caleb
4/14/17
Re: Pure mathematics
Sounds like you use point slope for a,c then just use the negative reciprocal of the slope of said
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Re: Pure mathematics
Sounds like you use point slope for a,c then just use the negative reciprocal of the slope of said
4/14/17
Aditya Guha Roy
4/13/17
Re: IMO 2014 'Easy' Geometry Problem
Alternately one could see the art of problem solving (aka AoPS) website to see some very elegant
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Re: IMO 2014 'Easy' Geometry Problem
Alternately one could see the art of problem solving (aka AoPS) website to see some very elegant
4/13/17
Kitimbo Jackson
2/25/17
Pure mathematics
ABCD is a rhombus.A is the point (2,-1),and C is the point (4,7).find the equation of the diagonal BD
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Pure mathematics
ABCD is a rhombus.A is the point (2,-1),and C is the point (4,7).find the equation of the diagonal BD
2/25/17
KC LEUNG
1/2/17
Integral of a^x - Exponential Function
Integral of a^x - Exponential Function https://youtu.be/WF55MYN74Yc
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Integral of a^x - Exponential Function
Integral of a^x - Exponential Function https://youtu.be/WF55MYN74Yc
1/2/17
KC LEUNG
1/2/17
Integral of logaX - Logarithmic Function
Integral of logaX - Logarithmic Function https://youtu.be/5sVFrfp10oM
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Integral of logaX - Logarithmic Function
Integral of logaX - Logarithmic Function https://youtu.be/5sVFrfp10oM
1/2/17
KC LEUNG
1/2/17
Integral of LnX - Natural Logarithmic Function
Integral of LnX - Natural Logarithmic Function https://youtu.be/lac7E06DREk
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Integral of LnX - Natural Logarithmic Function
Integral of LnX - Natural Logarithmic Function https://youtu.be/lac7E06DREk
1/2/17
KC LEUNG
1/2/17
Integral of e^x - Exponential Function
Integral of e^x - Exponential Function https://youtu.be/cu2wdHkf5NQ
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Integral of e^x - Exponential Function
Integral of e^x - Exponential Function https://youtu.be/cu2wdHkf5NQ
1/2/17
KC LEUNG
1/1/17
Integrals of Inverse Trigonometric Functions (updated)
Integrals of Inverse Trigonometric Functions - arcsin, arccos, arctan, arccot, arcsec, arccsc with
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Integrals of Inverse Trigonometric Functions (updated)
Integrals of Inverse Trigonometric Functions - arcsin, arccos, arctan, arccot, arcsec, arccsc with
1/1/17
KC LEUNG
,
Awadhesh
2
12/30/16
Proof of Integration by Parts with an example - x^2 arctan x dx
Hi. I have seen very nice. Can you share more related to education.
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Proof of Integration by Parts with an example - x^2 arctan x dx
Hi. I have seen very nice. Can you share more related to education.
12/30/16
KC LEUNG
12/28/16
Derivatives of Inverse Trigonometric Functions
Derivatives of Inverse Trigonometric Functions - arcsin x, arccos x, arctan x, arccsc x, arcsec x,
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Derivatives of Inverse Trigonometric Functions
Derivatives of Inverse Trigonometric Functions - arcsin x, arccos x, arctan x, arccsc x, arcsec x,
12/28/16
KC LEUNG
12/27/16
Integrals of Inverse Trigonmetric Functions
Integrals of Inverse Trigonometric Functions with verifictations - arcsin x, arccos x, arctan x,
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Integrals of Inverse Trigonmetric Functions
Integrals of Inverse Trigonometric Functions with verifictations - arcsin x, arccos x, arctan x,
12/27/16
Michael de Villiers
10/3/16
Transformations proofs of 3 circle geometry theorems
The following dynamic, interactive sketch gives transformation proofs for three basic circle geometry
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Transformations proofs of 3 circle geometry theorems
The following dynamic, interactive sketch gives transformation proofs for three basic circle geometry
10/3/16
Michael de Villiers
10/1/16
Hierarchical classification of Quadrilaterals
Some here might be interested in my interactive, dynamic, hierarchical classification of
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Hierarchical classification of Quadrilaterals
Some here might be interested in my interactive, dynamic, hierarchical classification of
10/1/16
Michael de Villiers
2
2/1/11
Sum of Interior Angles of Polygons: A general Formula, and other updates
Perhaps it's necessary to point out that this general formula for the sum of interior angles of a
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Sum of Interior Angles of Polygons: A general Formula, and other updates
Perhaps it's necessary to point out that this general formula for the sum of interior angles of a
2/1/11
kirby urner
1/13/11
Ideas for Geometry projects
Need ideas?: http://coffeeshopsnet.blogspot.com/2011/01/storyboarding-lcds.html Free/open/copyleft.
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Ideas for Geometry projects
Need ideas?: http://coffeeshopsnet.blogspot.com/2011/01/storyboarding-lcds.html Free/open/copyleft.
1/13/11
Michael de Villiers
12/19/10
Special: Some Adventures in Euclidean Geometry
The 3rd revised edition of my book "Some Adventures in Euclidean Geometry" focuses on
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Special: Some Adventures in Euclidean Geometry
The 3rd revised edition of my book "Some Adventures in Euclidean Geometry" focuses on
12/19/10
chase
12/16/10
Re: 9, 10, 11, 12 sided figures are called.....
good job! your on ur way to being a GOOD GOOD KID
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Re: 9, 10, 11, 12 sided figures are called.....
good job! your on ur way to being a GOOD GOOD KID
12/16/10
Dayna
12/13/10
geometry
Can a geometrical figure be more than 360 degrees?
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geometry
Can a geometrical figure be more than 360 degrees?
12/13/10
Allan Turton
,
Prof. Lu
2
11/25/10
Concave deltahedra with less than 12 faces
I have developed a method to create n-deltahedra recursively. The number of n-deltahedra for n<=12
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Concave deltahedra with less than 12 faces
I have developed a method to create n-deltahedra recursively. The number of n-deltahedra for n<=12
11/25/10
Allan Turton
,
Michael de Villiers
7
11/20/10
Inclusive and exclusive definitions... again!
Just recently experienced another area with an assignment for some teachers where a hierarchical
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Inclusive and exclusive definitions... again!
Just recently experienced another area with an assignment for some teachers where a hierarchical
11/20/10
Allan Turton
, …
Michael de Villiers
3
11/5/10
FW: Inclusive and exclusive definitions... again!
Hi Allan You might be interested in visiting this link on my website where I suggest ideas to develop
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FW: Inclusive and exclusive definitions... again!
Hi Allan You might be interested in visiting this link on my website where I suggest ideas to develop
11/5/10
Peter Scales
8/25/10
Re: Heart inscribed in a circle
> > Have you or has anyone done the opposite? Ie, > > circumscribed a given heart shape
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Re: Heart inscribed in a circle
> > Have you or has anyone done the opposite? Ie, > > circumscribed a given heart shape
8/25/10
Kirby Urner
8/19/10
Suggested student project (spatial geometry)
Could be a Youtube, might use stop-action animation: http://www.4dsolutions.net/satacad/martianmath/
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Suggested student project (spatial geometry)
Could be a Youtube, might use stop-action animation: http://www.4dsolutions.net/satacad/martianmath/
8/19/10
Stuart
,
Mary Krimmel
2
8/18/10
Heart inscribed in a circle
Have you or has anyone done the opposite? Ie, circumscribed a given heart shape with a circle?
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Heart inscribed in a circle
Have you or has anyone done the opposite? Ie, circumscribed a given heart shape with a circle?
8/18/10
ou, janis
,
Mary Krimmel
4
7/22/10
6 points in R3 conjecture
> I now see that 20 is indeed the maximum, that an > example is easy to find, that my intuition
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6 points in R3 conjecture
> I now see that 20 is indeed the maximum, that an > example is easy to find, that my intuition
7/22/10
Kirby Urner
3
7/12/10
Aristotle was Right!
Followup: DMY Sommerville documented four tetrahedral space-fillers in his 1923 paper, Space-Filling
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Aristotle was Right!
Followup: DMY Sommerville documented four tetrahedral space-fillers in his 1923 paper, Space-Filling
7/12/10
Todd Miller
5/27/10
Re: Rhoad Geometry for Enjoyment and Challenge
Hello Mr. Benson, I know it's been about 15 years from your post but I am going to reply any way.
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Re: Rhoad Geometry for Enjoyment and Challenge
Hello Mr. Benson, I know it's been about 15 years from your post but I am going to reply any way.
5/27/10
viewtech
3/24/10
Re: Hyperbolas in Nature
You could do much the same with magnetism instead of electricity. Diffraction of light around a sharp
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Re: Hyperbolas in Nature
You could do much the same with magnetism instead of electricity. Diffraction of light around a sharp
3/24/10