Another one:
In lexicographical order c<s, also 90<180

#angles

32.5=31.5

Be careful, it's easy to introduce logical gaps in visuals.

x,y ∈ ℕ | x²+y²=c ⇒ ∃ w,z ∈ ℕ | w²+z²=2c

Milü, approximations to #pi

Approximation to #pi using Monte Carlo Integration

Gauss-Jordan reduction #matrix

Limit definition of the #derivative #calculus

#integrals #byparts

#pascalstriangle patterns

#pascalstriangle patterns

#pascalstriangle patterns

#pascalstriangle patterns

Composition of reflections over two parallel lines is a translation #geometry #isometries

Composition of reflections over two intersecting lines is a rotation #geometry #isometries