{{indexmenu_n>999}}
====== InvertEnergy ======

###
InvertEnergy(G) takes response function $G(\omega)$ as an argument and returns $G(-\omega)$. Argument response function doesn't get overwritten.
###

===== Example =====

###
This example initializes a response function in the "list of poles" representation and inverts its energy.
###

==== Input ====
<code Quanty Example.Quanty>
NEDOS   = 10
HalfBW = 1
dE =HalfBW/NEDOS

a0 = {0}
b0 = {}

for i=-NEDOS,NEDOS do
  a0[#a0+1] = i * dE -- energy axis from -1 to 1
  b0[#b0+1] = 0.5 -- flat density of states
end

G0 = ResponseFunction.New( {a0,b0,mu=0,type="ListOfPoles", name="G0"} )
G0_inv = ResponseFunction.InvertEnergy(G0)

print(ResponseFunction.ToTable(G0))
print(ResponseFunction.ToTable(G0_inv))

</code>

==== Result ====
<file Quanty_Output>
{ { 0 , -1 , -0.9 , -0.8 , -0.7 , -0.6 , -0.5 , -0.4 , -0.3 , -0.2 , -0.1 , 0 , 0.1 , 0.2 , 0.3 , 0.4 , 0.5 , 0.6 , 0.7 , 0.8 , 0.9 , 1 } , 
  { 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 } ,
  type = ListOfPoles ,
  mu = 0 ,
  name = G0 }
  
{ { 0 , 1 , 0.9 , 0.8 , 0.7 , 0.6 , 0.5 , 0.4 , 0.3 , 0.2 , 0.1 , 0 , -0.1 , -0.2 , -0.3 , -0.4 , -0.5 , -0.6 , -0.7 , -0.8 , -0.9 , -1 } , 
  { 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 , 0.5 } ,
  type = ListOfPoles ,
  mu = 0 ,
  name = G0 }

</file>

===== Table of contents =====
{{indexmenu>.#1|msort}}