EVAL MODE

1. EVAL MODE

Definition :

• EVAL is a mode which allows to type in Python expressions
• EVAL will display an history of inputs and results

1.1. Modus operandi

Operations	result
type in main line the python expression followed by Return_Key	=> will evaluate the line
Control-e_Key in minipad	execute the line(s) (useful when many lines)

Pour évaluer une expression :

• sélectionner une zone
• faire Ctrl-e dans la fenetre de saisie

1.2. Examples

Screen shot

1.3. COMMANDES DU MODE EVAL

1.3.1. SHORTCUTS

shortcuts/abreviations

• !ab x y : defines shortcut x for the text y. Exemple : !ab xxx yyyy
  • attention : 1 seul blanc séparateur, pas de blanc dans x ni dans y
• !abx : destroys all macros
• !abs : (show) show all macros

1.3.2. TRACE

1.3.3. ENTRIES IN KM2 MODE

THe KM2 EVAL MODE allows entries with the KM2 notations, in text mode, and without icons. MODE ENTREE

• !eval mode python : standard python instructions
• !eval mode km2 : pKM2 pre-processing of python elements

enter KM2 EVAL MODE !eval mode km2 : instructions with km2 proeprocessing

Back to STANDARD PYTHON MODE !eval mode python : direct python normal processing

. DESCRIPTION transforms first the tree into a KM2 tree, with icons and macros, then process the tree to build a python expression, and finally executes or evaluates the statement.
RULES

• # --> comment 1
• ## --> comment all
• i --> ignore
• ii --> ignore all
• !*xxx --> *xxx

1.3.3. 1. EXEMPLES

Definition of factorial n : n !

STEPS		result and display
1	introduce notation
2	define function using notation
3	use function and notation

1.4. Examples

simple example Session

KM2 input mode session