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47 lines
1.3 KiB
Mathematica
47 lines
1.3 KiB
Mathematica
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; M code examples contrasting postconditionals with IF-commands
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;
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post1 ; postconditional in set command
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set a=5
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set b=10
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set c=25
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I 0 ;purposely set $TEST to false
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write "$TEST special variable (before post-condition)=",$TEST
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set:(a<b) c=b
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write "$TEST special variable (after post-condition) =",$TEST
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write "c =",c,!
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quit
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;
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post2 ; postconditional in write command
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set a=5
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set b=10
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I 0 ;purposely set $TEST to false
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write "$TEST special variable (before post-condition)=",$TEST
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write:(a<b) "variable a=",a," is smaller than b=",b,!
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write "$TEST special variable (after post-condition) =",$TEST
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write:(a>b) "variable a=",a," is larger than b=",b,!
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write "$TEST special variable (after post-condition) =",$TEST
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quit
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;
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if1 ; if command
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set a=5
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set b=10
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set c=25
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I 0 ;purposely set $TEST to false
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write "$TEST special variable (before IF)=",$TEST
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if (a<b) set c=b
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write "$TEST special variable (after IF) =",$TEST
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write c,!
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quit
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;
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if2 ; postconditional in write command
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set a=5
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set b=10
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I 0 ;purposely set $TEST to false
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write "$TEST special variable (before IF)=",$TEST
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if (a<b) write "variable a=",a," is smaller than b=",b,!
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write "$TEST special variable (after IF) =",$TEST
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if (a>b) write "variable a=",a," is larger than b=",b,!
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write "$TEST special variable (after IF) =",$TEST
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quit
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