JS SCRIPT   (On Mathematics Education)       See here for charts in PHP       (see here for charts with R)

[if you want, you can save the files on your computer (by clicking the name with the right mouse button)]          Expression manipulation: examples     strip diagrams  /  diagramma a striscia  (figure on the right)   360-100-180 h - min a die / un dado   (random) 2 dice  /  2 dadi  (random) histogram (starting from single data)    (examples)   simplifying fractions  (GCD / MCD)    (examples) d  →  m/n  (repeating decimal → ratio of integers  /  numero periodico → rapporto tra interi)

 5.3627627627627... → 8929/1665    area and center (and perimeter)  /  area e centro (e perimetro)    (example, with PHP graph)  triangle (if I know 3 sides/angles)      2 points in the plane (vector)  intersection of 2 straight lines distance between a point and a line intersection of 2 circles  x+y < k, if x,y ∈ [0,1] approximations - interval arithmetic approximations of generic functions      factorial (!) distance length of circle arcs linear system - 2 equations  determinant 3x3

linear system - 4 equations (and determinant 4x4)    (examples)   square root  encode / decode  division in a base of your choice

 division of m by n with m < n (natural numbers in base ten) and result in a base of your choice By clicking  [one step]  you gradually get the figures of the result m = n = base = remainder =

 division of m by n with m < n (natural numbers in base ten) and result in a base of your choice By clicking  [one step]  you gradually get the figures of the result m = n = base = remainder = tabulation of a function  (and calculation of limits)   (examples)
[Now  x →  sin(x)/x  is calculated] recursive definition    (examples)
[Now  F(1) = 1, F(n+1) = 2· F(n)  is calculated] series    (examples)
[Now the sum 1 + 0.8 + 0.8² + 0.8³ + ... is calculated]  integral of Gauss distribution   max polinomial f. in [a,b]

max F in [a,b]    (examples)
[Now F is  x^4 + 5*x^3 - 20*x + 2]  min F in [a,b]    (examples)
[Now F is  x^4 + 5*x^3 - 20*x + 2]    derivative of functions    (examples)
[Now the function is x → x³+1] integrals of functions    (examples)
[Now the integral of x → √(x³+1) - between 1 and 7 - is calculated]          2 points in the space  automatic tabulation of a function (for various uses)   examples orthodromic distance (distance between 2 points on a sphere)   (examples) Examples of integrated uses of various scripts javascript