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manual:chapter6:operators:cmd_ovr_eval [2019/11/06 15:31]
jojo1973
manual:chapter6:operators:cmd_ovr_eval [2019/11/17 08:23] (current)
jojo1973 Highlighted EVAL when used in technical sense
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   * **Local Name**: ''​EVAL''​ //recalls// the content of the variable.   * **Local Name**: ''​EVAL''​ //recalls// the content of the variable.
   * **Global Name**: ''​EVAL''​ //calls// the content of a variable:   * **Global Name**: ''​EVAL''​ //calls// the content of a variable:
-    - a __Name__ is evaluated+    - a __Name__ is ''​EVAL''​uated
-    - a __Program__ is evaluated;+    - a __Program__ is ''​EVAL''​uated;
     - a __Directory__ becomes the current directory;     - a __Directory__ becomes the current directory;
     - __other objects__ which are not lists are put on the stack.     - __other objects__ which are not lists are put on the stack.
   * **Program**:​ ''​EVAL''​ //enters// each object in the program:   * **Program**:​ ''​EVAL''​ //enters// each object in the program:
-    - an [[manual:​chapter6:​dirs:​cmd_unquoteid|unquoted]] __Name__ is evaluated;+    - an [[manual:​chapter6:​dirs:​cmd_unquoteid|unquoted]] __Name__ is ''​EVAL''​uated;
     - a __Keyword__ is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted;​     - a __Keyword__ is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted;​
     - __other objects__ which are not lists are put on the stack.     - __other objects__ which are not lists are put on the stack.
   * **Symbolic expression**:​ ''​EVAL''​ //enters// each object in the expression:   * **Symbolic expression**:​ ''​EVAL''​ //enters// each object in the expression:
-    - a __Name__ is evaluated;+    - a __Name__ is ''​EVAL''​uated;
     - a __Keyword__ is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted;​     - a __Keyword__ is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted;​
     - __other objects__ which are not lists are put on the stack.     - __other objects__ which are not lists are put on the stack.
   * **Other objects**: if they are not lists ''​EVAL''​ puts them on the stack.   * **Other objects**: if they are not lists ''​EVAL''​ puts them on the stack.
   * **List**: ''​EVAL''​ //enters// each object in the list:   * **List**: ''​EVAL''​ //enters// each object in the list:
-    - __any object__ is evaluated ​according above mentioned rules.+    - __any object__ is ''​EVAL''​uated ​according above mentioned rules.
     ​     ​
 As a final step, ''​EVAL''​ will perform numerical simplification according to the status of flags from [[manual:​appendix:​flags#​flag-70|-70]] to [[manual:​appendix:​flags#​flag-78|-78]]. As a final step, ''​EVAL''​ will perform numerical simplification according to the status of flags from [[manual:​appendix:​flags#​flag-70|-70]] to [[manual:​appendix:​flags#​flag-78|-78]].
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   * In userRPL, if the argument is a list ''​EVAL''​ //enters// any object in the list, then:   * In userRPL, if the argument is a list ''​EVAL''​ //enters// any object in the list, then:
-    - a __Name__ is evaluated+    - a __Name__ is ''​EVAL''​uated
-    - a __Program__ is evaluated;+    - a __Program__ is ''​EVAL''​uated;
     - a __Keyword__ is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted;​     - a __Keyword__ is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted;​
     - __other objects__ are put on the stack.     - __other objects__ are put on the stack.
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 </​code>​ </​code>​
 will perform the following steps: will perform the following steps:
-  - ''​CIRCUM''​ (a //global name//) is evaluated+  - ''​CIRCUM''​ (a //global name//) is ''​EVAL''​uated
-  - ''​« TWOPI * »''​ (a //​program//​) is evaluated+  - ''​« TWOPI * »''​ (a //​program//​) is ''​EVAL''​uated
-  - ''​TWOPI'',​ the first object (a //global name//) in the program is evaluated;+  - ''​TWOPI'',​ the first object (a //global name//) in the program is ''​EVAL''​uated;
   - ''​6.28''​ (a //real number//) is put on the stack;   - ''​6.28''​ (a //real number//) is put on the stack;
   - ''​[[manual:​chapter6:​operators:​cmd_ovr_mul|*]]'',​ the second object (a //​keyword//​) in the program is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted.   - ''​[[manual:​chapter6:​operators:​cmd_ovr_mul|*]]'',​ the second object (a //​keyword//​) in the program is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted.
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 </​code>​ </​code>​
 will perform the following steps: will perform the following steps:
-  - ''​%%'​16'​%%''​ (a //symbolic expression//​) is evaluated;+  - ''​%%'​16'​%%''​ (a //symbolic expression//​) is ''​EVAL''​uated;
   - ''​16''​ (a //real number//) is put on the stack;   - ''​16''​ (a //real number//) is put on the stack;
   - ''​[[manual:​chapter6:​transcendentals:​cmd_sqrt|√]]''​ (a //​keyword//​) is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted.   - ''​[[manual:​chapter6:​transcendentals:​cmd_sqrt|√]]''​ (a //​keyword//​) is ''​[[manual:​chapter6:​operators:​cmd_ovr_xeq|XEQ]]''​ted.
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