m-shell.net

Module abutils

Generally useful simple functions in m.

Functions

contains(rect, x, y)	Check whether a rectangle contains a point.
gcd(a, b)	Compute the greatest common divisor of two numbers.
roundRect(x, y, w, h, r)	Draw a rectangle with round corners.
sum(a)	Compute the sum of numbers in an array.

function sum(a)

Compute the sum of numbers in an array.
Parameters:
a – the array of numbers.
Returns:the sum.

function gcd(a, b)

Compute the greatest common divisor of two numbers.
Parameters:
a – the first number.
b – the second number.
Returns:the greatest common divisor of a and b

function contains(rect, x, y)

Check whether a rectangle contains a point.
Parameters:
rect – the rectangle in the form [x, y, w, h].
x – the x coordinate of the point.
y – the y coordinate of the point.
Returns:true if rect contains (x,y).

function roundRect(x, y, w, h, r)

Draw a rectangle with round corners.
Parameters:
x – the x coordinate of the upper left corner.
y – the y coordinate of the upper left corner.
w – the width.
h – the height.
r – the radius of the rounded part.