functions in std.i - e

 
edit_times 

    edit_times, file  
 or edit_times, file, keep_list  
 or edit_times, file, keep_list, new_times, new_ncycs  


edits the records for FILE.  The KEEP_LIST is a 0-origin index list  
of records to be kept, or nil to keep all records.  The NEW_TIMES  
array is the list of new time values for the (kept) records, and  
the NEW_NCYCS array is the list of new cycle number values for the  
(kept) records.  Either NEW_TIMES, or NEW_NCYCS, or both, may be  
nil to leave the corresponding values unchanged.  If non-nil,  
NEW_TIMES and NEW_NCYCS must have the same length as KEEP_LIST,  
or, if KEEP_LIST is nil, as the original number of records in  
the file.  If KEEP_LIST, NEW_TIME, and NEW_NCYCS are all omitted  
or nil, then edit_times removes records as necessary to ensure  
that the remaining records have monotonically increasing times,  
or, if no times are present, monotonically increasing ncycs.  
(The latest record at any given time/ncyc is retained, and earlier  
records are removed.)  
In no case does edit_times change the FILE itself; only Yorick's  
in-memory model of the file is altered.  
Builtin function, documented at i0/std.i   line 3316
SEE ALSO: get_times,   get_ncycs,   jt,   jc  
 
 
 
eq_nocopy 

    eq_nocopy, y, x  


is the same as  
       y= x  
except that if x is an array, it is not copied, even if it is  
not a temporary (i.e.- an expression).  Having multiple variables  
reference the same data can be confusing, which is why the default  
= operation copies the array.  The most important use of eq_nocopy  
involves pointers or lists:  
       y= *py  
       z= _car(list)  
always causes the data pointed to by py to be copied, while  
       eq_nocopy, y, *py  
       eq_nocopy, z, _car(list)  
does not copy the data - often more nearly what you wanted.  
Note that scalar int, long, and double variables are always copied,  
so you cannot count on eq_nocopy setting up an "equivalence"  
between variables.  
Builtin function, documented at i0/std.i   line 326
 
error 

    exit, msg  
    error, msg  


Exits the current interpreted *main* program, printing the MSG.  
(MSG can be omitted to print a default.)  
In the case of exit, the result is equivalent to an immediate  
return from every function in the current calling chain.  
In the case of error, the result is the same as if an error had  
occurred in a compiled routine.  
Builtin function, documented at i0/std.i   line 3439
SEE ALSO: print,   write,   batch,   catch  
 
 
 
exit 

    exit  


Builtin function, documented at i0/std.i   line 3439
SEE error  
 
 
 
exp 

    exp(x)  


returns the exponential function of its argument (inverse of log).  
Builtin function, documented at i0/std.i   line 654
SEE ALSO: expm1,   log,   log10,   sinh,   cosh,   tanh,   sech,   csch  
 
 
 
expm1 

    expm1(x)  
 or expm1(x, ex)  


return exp(X)-1 accurate to machine precision (even for X<<1)  
in the second form, returns exp(x) to EX  
Interpreted function, defined at i0/std.i   line 672
SEE ALSO: exp,   log1p