Schmid factor calculation input parameters

loading direction (in Cartesian coordinates, unit vector not neccessary):
load_x=0
load_y=1
load_z=0

slip systems:
<110>{001}	BE_a
<110>{100}	PrE_a
<001>{100}	PrE2_c
<113>{100}	PrE3_c+a
<110>{101}	PyE_a
<113>{112}	PyE2_c+a
<113>{111}	PyE3_c+a
<113>{101}	PyE4_c+a

#### NOTES and HELP:
You must specify a slip system this way:
<Burgers_hkl>{slip_plane_hkl} identifier

The slip plane and the slip direction (Burgers vector) together define the slip system.
brackets for Burgers vector: <>
brackets for slip plane: {}
hkl can be separated by comma: h,k,l
identifier is an arbitrary text

examples:

for fcc crystal system:
<110>{111} fcc 

for bcc crystal system:
<1,1,1>{1,1,0}

for hcp crystal system:
<1,1,0>{001}	BE_a
<110>{100}	PrE_a
<001>{100}	PrE2_c
<113>{100}	PrE3_c+a
<110>{101}	PyE_a
<113>{112}	PyE2_c+a
<113>{111}	PyE3_c+a
<113>{101}	PyE4_c+a
