User:Dmcq

Here I just make and upload not very wonderful pictures to try and help out with what I write on en.wikipedia.

You can find my wiki persona there at [User:Dmcq].

My contributions here

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  Sprung floor: Basketweave
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  Sprung floor: Low profile
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  Haga theorem 1
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  Construction of cube root of 2 using origami
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  Trisecting an angle using origami
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  Illustration of Maekawas Theorem number of valley's and folds differs by 2 at a point
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  Crease pattern for 25 point sea urchin type solution for Napkin folding problem
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  Crease pattern for an example Miura-ori
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  Smart waterbomb - circular base and curved folds
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  Selfridge-Conway fair division
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  stromquist moving-knife procedure
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  Math MOS geometry illustration
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  Illustrate what the hypotenuse is
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  Codomain of a function (updated from Damien Karras)
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  Principal value of the arg function
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  circle with some values of atan2
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  Deriviative of exponential function equals the function
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  Euclid bk1 prop5 pons asinorum, greek letters
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  Euclid bk1 prop5 pons asinorum, english letters
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  Multiplication example 4 bags of three coloured marbles
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  Area of field by multiplication
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  Multiplication: Two scaled by 3 produces 6
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  A proof without words for the pizza theorem
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  A proof without words for Nicomachus's theorem
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  Area of annulus determined by tangent length
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  Basic idea of Mamikon's theorem
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  Finding the area of a cycloid using Mamikon's theorem
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  Solving polynomials using Lill's method
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  Solution of ax²+bx+c using Lill's method. Solutions are −AX1/SA, −AX2/SA
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  Antiparallelogram linkage with bracing to not turn into a parallelogram
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  Sylvester's Link Fan or Isoklinstat to trisect angles
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  Spherical coordinate system with a common maths convention opposite to that in physics
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  Penrose tiling of gingerbread men
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  Penrose tiling like a Roman floor
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  Perspective projection of a tesseract with hidden vertex elimination.
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  Tesseract with hidden volume elimination showing nearest point (updated from Tetracube)
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  Demonstrate that the projection of a square can be concave
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  Normalized IQ distribution mean 100 and standard deviation 15