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documentation:language_reference:objects:operator:methods:print [2016/09/25 13:58] – created Maurits W. Haverkortdocumentation:language_reference:objects:operator:methods:print [2016/10/10 09:41] (current) – external edit 127.0.0.1
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 +====== Print ======
  
 +###
 +For an operator //O//, //O.Print()// prints the operator O. For small operators //print(O)// is preferred over //O.Print()//. //O.Print()// is more memory efficient and therefore useful for large operators. //O.Print()// returns //nill// and prints the operator to standard output. Options can be specified if you want to print to file 
 +###
 +
 +===== Options =====
 +
 +###
 +//O.Print()// accepts options. Several options are specified as a list //{}// of single options. A single option is given as a list of //name// and //value//, //{"name",value}//. 
 +###
 +
 +==== "File" ====
 +
 +###
 +"File" of type string: A string specifying the file name to which the operator is printed (over writing the old file)
 +###
 +
 +==== "Full" ====
 +
 +###
 +"Full" of type boolean: A boolean character (standard false). If true additional information about Hash tables, fragmentation and collisions is printed. Only needed for debug or memory management optimization purposes.
 +###
 +
 +===== Example =====
 +
 +###
 +We define:
 +$$O=3.4+1.2a^{\dagger}_{0}\,a^{\phantom{\dagger}}_{0}+(2.5+I)a^{\dagger}_{1}\,a^{\phantom{\dagger}}_{2},$$
 +and show two ways to print this operator with the same result.
 +###
 +
 +==== Input ====
 +<code Quanty Example.Quanty>
 +NF=3
 +NB=0
 +O = NewOperator(NF,NB,{{3.4},{0,-0,1.2},{1,-2,2.5+I}})
 +print(O)
 +O.Print()
 +</code>
 +
 +==== Result ====
 +<file Quanty_Output>
 +Operator: Operator
 +QComplex         =          2 (Real==0 or Complex==1 or Mixed==2)
 +MaxLength        =          2 (largest number of product of lader operators)
 +NFermionic modes =          3 (Number of fermionic modes (site, spin, orbital, ...) in the one particle basis)
 +NBosonic modes   =          0 (Number of bosonic modes (phonon modes, ...) in the one particle basis)
 +
 +Operator of Length   0
 +QComplex      =          0 (Real==0 or Complex==1)
 +N             =          1 (number of operators of length   0)
 +|  3.400000000000000E+00
 +
 +Operator of Length   2
 +QComplex      =          1 (Real==0 or Complex==1)
 +N             =          2 (number of operators of length   2)
 +C  0 A  0 |  1.200000000000000E+00  0.000000000000000E+00
 +C  1 A  2 |  2.500000000000000E+00  1.000000000000000E+00
 +
 +
 +
 +Operator: Operator
 +QComplex         =          2 (Real==0 or Complex==1 or Mixed==2)
 +MaxLength        =          2 (largest number of product of lader operators)
 +NFermionic modes =          3 (Number of fermions in the one particle basis)
 +NBosonic modes   =          0 (Number of bosons in the one particle basis)
 +
 +Operator of Length   0
 +QComplex      =          0 (Real==0 or Complex==1)
 +N             =          1 (number of operators of length   0)
 +|  3.400000000000000E+00
 +
 +Operator of Length   2
 +QComplex      =          1 (Real==0 or Complex==1)
 +N             =          2 (number of operators of length   2)
 +C  0 A  0 |  1.200000000000000E+00  0.000000000000000E+00
 +C  1 A  2 |  2.500000000000000E+00  1.000000000000000E+00
 +</file>
 +
 +===== Available methods =====
 +{{indexmenu>.#1}}

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