def test

Page Contents (page12)

new chars/structures on this page

f1(1) f2(1 , 3) custom functions

establish behavior of undefined variables in equations

if one value is undefined then return the defined value unchanged

if both are undefined then return an undefined value

full page desc content

all/any/none/any-dont those which min/max Custom function Define loop return values and how to manipulate them default return is number of loops executed. but setting it at any point overrides that behavior should add more loop return behavior examples establish that undefined variables have no effect in equations. an undefined variable acts as 0 in additions and subtraction. as 1 in * / ^, in 'x divides y' an undefined y acts as x^2 etc.. 1.if one of the values is defined then you get the defined value as a result 2.with 2 undefiuned values the result is an undefined value. For custom functions you can use any symbol as the brac symbol. but I have only added custom alignment for number 1 to 6 I simple number might be best,. of course custom symbols can be designed and drawn. but for general purpose function definition and usage, I think just labeling them the same everything is given an ID is the simplest solution for now there now alot of what is needed for calculus we can even draw the procedural logic quite elegantly function, array pair loops can draw trapezoidal areas under iterated functions ...debating the order and sequence of how to add calculus and geometry before moving on physics and astronmy *show* func(1..1) func(2..1..3) :: f1(1) f2(1 .. 3) custom functions _2 :: establish behavior of undefined variables in equations _2 :: if one value is undefined then return the defined value unchanged _2 :: if both are undefined then return an undefined value