Equation v 0.0.1-alpha

This commit is contained in:
Arthur Lu
2020-12-09 03:56:22 +00:00
parent c451b1ebb9
commit 2f280bedf6
10 changed files with 961 additions and 23 deletions

View File

@@ -0,0 +1,237 @@
import math
import sys
import re
if sys.version_info >= (3,):
xrange = range
basestring = str
class ExpressionObject(object):
def __init__(self,*args,**kwargs):
super(ExpressionObject,self).__init__(*args,**kwargs)
def toStr(self,args,expression):
return ""
def toRepr(self,args,expression):
return ""
def __call__(self,args,expression):
pass
class ExpressionValue(ExpressionObject):
def __init__(self,value,*args,**kwargs):
super(ExpressionValue,self).__init__(*args,**kwargs)
self.value = value
def toStr(self,args,expression):
if (isinstance(self.value,complex)):
V = [self.value.real,self.value.imag]
E = [0,0]
B = [0,0]
out = ["",""]
for i in xrange(2):
if V[i] == 0:
E[i] = 0
B[i] = 0
else:
E[i] = int(math.floor(math.log10(abs(V[i]))))
B[i] = V[i]*10**-E[i]
if E[i] in [0,1,2,3] and str(V[i])[-2:] == ".0":
B[i] = int(V[i])
E[i] = 0
if E[i] in [-1,-2] and len(str(V[i])) <= 7:
B[i] = V[i]
E[i] = 0
if i == 1:
fmt = "{{0:+{0:s}}}"
else:
fmt = "{{0:-{0:s}}}"
if type(B[i]) == int:
out[i] += fmt.format('d').format(B[i])
else:
out[i] += fmt.format('.5f').format(B[i]).rstrip("0.")
if i == 1:
out[i] += "\\imath"
if E[i] != 0:
out[i] += "\\times10^{{{0:d}}}".format(E[i])
return "\\left(" + ''.join(out) + "\\right)"
elif (isinstance(self.value,float)):
V = self.value
E = 0
B = 0
out = ""
if V == 0:
E = 0
B = 0
else:
E = int(math.floor(math.log10(abs(V))))
B = V*10**-E
if E in [0,1,2,3] and str(V)[-2:] == ".0":
B = int(V)
E = 0
if E in [-1,-2] and len(str(V)) <= 7:
B = V
E = 0
if type(B) == int:
out += "{0:-d}".format(B)
else:
out += "{0:-.5f}".format(B).rstrip("0.")
if E != 0:
out += "\\times10^{{{0:d}}}".format(E)
return "\\left(" + out + "\\right)"
else:
return out
else:
return str(self.value)
def toRepr(self,args,expression):
return str(self.value)
def __call__(self,args,expression):
return self.value
def __repr__(self):
return "<{0:s}.{1:s}({2:s}) object at {3:0=#10x}>".format(type(self).__module__,type(self).__name__,str(self.value),id(self))
class ExpressionFunction(ExpressionObject):
def __init__(self,function,nargs,form,display,id,isfunc,*args,**kwargs):
super(ExpressionFunction,self).__init__(*args,**kwargs)
self.function = function
self.nargs = nargs
self.form = form
self.display = display
self.id = id
self.isfunc = isfunc
def toStr(self,args,expression):
params = []
for i in xrange(self.nargs):
params.append(args.pop())
if self.isfunc:
return str(self.display.format(','.join(params[::-1])))
else:
return str(self.display.format(*params[::-1]))
def toRepr(self,args,expression):
params = []
for i in xrange(self.nargs):
params.append(args.pop())
if self.isfunc:
return str(self.form.format(','.join(params[::-1])))
else:
return str(self.form.format(*params[::-1]))
def __call__(self,args,expression):
params = []
for i in xrange(self.nargs):
params.append(args.pop())
return self.function(*params[::-1])
def __repr__(self):
return "<{0:s}.{1:s}({2:s},{3:d}) object at {4:0=#10x}>".format(type(self).__module__,type(self).__name__,str(self.id),self.nargs,id(self))
class ExpressionVariable(ExpressionObject):
def __init__(self,name,*args,**kwargs):
super(ExpressionVariable,self).__init__(*args,**kwargs)
self.name = name
def toStr(self,args,expression):
return str(self.name)
def toRepr(self,args,expression):
return str(self.name)
def __call__(self,args,expression):
if self.name in expression.variables:
return expression.variables[self.name]
else:
return 0 # Default variables to return 0
def __repr__(self):
return "<{0:s}.{1:s}({2:s}) object at {3:0=#10x}>".format(type(self).__module__,type(self).__name__,str(self.name),id(self))
class Core():
constants = {}
unary_ops = {}
ops = {}
functions = {}
smatch = re.compile("\s*,")
vmatch = re.compile("\s*"
"(?:"
"(?P<oct>"
"(?P<octsign>[+-]?)"
"\s*0o"
"(?P<octvalue>[0-7]+)"
")|(?P<hex>"
"(?P<hexsign>[+-]?)"
"\s*0x"
"(?P<hexvalue>[0-9a-fA-F]+)"
")|(?P<bin>"
"(?P<binsign>[+-]?)"
"\s*0b"
"(?P<binvalue>[01]+)"
")|(?P<dec>"
"(?P<rsign>[+-]?)"
"\s*"
"(?P<rvalue>(?:\d+\.\d+|\d+\.|\.\d+|\d+))"
"(?:"
"[Ee]"
"(?P<rexpoent>[+-]?\d+)"
")?"
"(?:"
"\s*"
"(?P<sep>(?(rvalue)\+|))?"
"\s*"
"(?P<isign>(?(rvalue)(?(sep)[+-]?|[+-])|[+-]?)?)"
"\s*"
"(?P<ivalue>(?:\d+\.\d+|\d+\.|\.\d+|\d+))"
"(?:"
"[Ee]"
"(?P<iexpoent>[+-]?\d+)"
")?"
"[ij]"
")?"
")"
")")
nmatch = re.compile("\s*([a-zA-Z_][a-zA-Z0-9_]*)")
gsmatch = re.compile('\s*(\()')
gematch = re.compile('\s*(\))')
def recalculateFMatch(self):
fks = sorted(self.functions.keys(), key=len, reverse=True)
oks = sorted(self.ops.keys(), key=len, reverse=True)
uks = sorted(self.unary_ops.keys(), key=len, reverse=True)
self.fmatch = re.compile('\s*(' + '|'.join(map(re.escape,fks)) + ')')
self.omatch = re.compile('\s*(' + '|'.join(map(re.escape,oks)) + ')')
self.umatch = re.compile('\s*(' + '|'.join(map(re.escape,uks)) + ')')
def addFn(self,id,str,latex,args,func):
self.functions[id] = {
'str': str,
'latex': latex,
'args': args,
'func': func}
def addOp(self,id,str,latex,single,prec,func):
if single:
raise RuntimeError("Single Ops Not Yet Supported")
self.ops[id] = {
'str': str,
'latex': latex,
'args': 2,
'prec': prec,
'func': func}
def addUnaryOp(self,id,str,latex,func):
self.unary_ops[id] = {
'str': str,
'latex': latex,
'args': 1,
'prec': 0,
'func': func}
def addConst(self,name,value):
self.constants[name] = value

View File

@@ -0,0 +1,2 @@
from . import equation_base as equation_base
from .ExpressionCore import ExpressionValue, ExpressionFunction, ExpressionVariable, Core

View File

@@ -0,0 +1,106 @@
try:
import numpy as np
has_numpy = True
except ImportError:
import math
has_numpy = False
try:
import scipy.constants
has_scipy = True
except ImportError:
has_scipy = False
import operator as op
from .similar import sim, nsim, gsim, lsim
def equation_extend(core):
def product(*args):
if len(args) == 1 and has_numpy:
return np.prod(args[0])
else:
return reduce(op.mul,args,1)
def sumargs(*args):
if len(args) == 1:
return sum(args[0])
else:
return sum(args)
core.addOp('+',"({0:s} + {1:s})","\\left({0:s} + {1:s}\\right)",False,3,op.add)
core.addOp('-',"({0:s} - {1:s})","\\left({0:s} - {1:s}\\right)",False,3,op.sub)
core.addOp('*',"({0:s} * {1:s})","\\left({0:s} \\times {1:s}\\right)",False,2,op.mul)
core.addOp('/',"({0:s} / {1:s})","\\frac{{{0:s}}}{{{1:s}}}",False,2,op.truediv)
core.addOp('%',"({0:s} % {1:s})","\\left({0:s} \\bmod {1:s}\\right)",False,2,op.mod)
core.addOp('^',"({0:s} ^ {1:s})","{0:s}^{{{1:s}}}",False,1,op.pow)
core.addOp('**',"({0:s} ^ {1:s})","{0:s}^{{{1:s}}}",False,1,op.pow)
core.addOp('&',"({0:s} & {1:s})","\\left({0:s} \\land {1:s}\\right)",False,4,op.and_)
core.addOp('|',"({0:s} | {1:s})","\\left({0:s} \\lor {1:s}\\right)",False,4,op.or_)
core.addOp('</>',"({0:s} </> {1:s})","\\left({0:s} \\oplus {1:s}\\right)",False,4,op.xor)
core.addOp('&|',"({0:s} </> {1:s})","\\left({0:s} \\oplus {1:s}\\right)",False,4,op.xor)
core.addOp('|&',"({0:s} </> {1:s})","\\left({0:s} \\oplus {1:s}\\right)",False,4,op.xor)
core.addOp('==',"({0:s} == {1:s})","\\left({0:s} = {1:s}\\right)",False,5,op.eq)
core.addOp('=',"({0:s} == {1:s})","\\left({0:s} = {1:s}\\right)",False,5,op.eq)
core.addOp('~',"({0:s} ~ {1:s})","\\left({0:s} \\approx {1:s}\\right)",False,5,sim)
core.addOp('!~',"({0:s} !~ {1:s})","\\left({0:s} \\not\\approx {1:s}\\right)",False,5,nsim)
core.addOp('!=',"({0:s} != {1:s})","\\left({0:s} \\neg {1:s}\\right)",False,5,op.ne)
core.addOp('<>',"({0:s} != {1:s})","\\left({0:s} \\neg {1:s}\\right)",False,5,op.ne)
core.addOp('><',"({0:s} != {1:s})","\\left({0:s} \\neg {1:s}\\right)",False,5,op.ne)
core.addOp('<',"({0:s} < {1:s})","\\left({0:s} < {1:s}\\right)",False,5,op.lt)
core.addOp('>',"({0:s} > {1:s})","\\left({0:s} > {1:s}\\right)",False,5,op.gt)
core.addOp('<=',"({0:s} <= {1:s})","\\left({0:s} \\leq {1:s}\\right)",False,5,op.le)
core.addOp('>=',"({0:s} >= {1:s})","\\left({0:s} \\geq {1:s}\\right)",False,5,op.ge)
core.addOp('=<',"({0:s} <= {1:s})","\\left({0:s} \\leq {1:s}\\right)",False,5,op.le)
core.addOp('=>',"({0:s} >= {1:s})","\\left({0:s} \\geq {1:s}\\right)",False,5,op.ge)
core.addOp('<~',"({0:s} <~ {1:s})","\\left({0:s} \lessapprox {1:s}\\right)",False,5,lsim)
core.addOp('>~',"({0:s} >~ {1:s})","\\left({0:s} \\gtrapprox {1:s}\\right)",False,5,gsim)
core.addOp('~<',"({0:s} <~ {1:s})","\\left({0:s} \lessapprox {1:s}\\right)",False,5,lsim)
core.addOp('~>',"({0:s} >~ {1:s})","\\left({0:s} \\gtrapprox {1:s}\\right)",False,5,gsim)
core.addUnaryOp('!',"(!{0:s})","\\neg{0:s}",op.not_)
core.addUnaryOp('-',"-{0:s}","-{0:s}",op.neg)
core.addFn('abs',"abs({0:s})","\\left|{0:s}\\right|",1,op.abs)
core.addFn('sum',"sum({0:s})","\\sum\\left({0:s}\\right)",'+',sumargs)
core.addFn('prod',"prod({0:s})","\\prod\\left({0:s}\\right)",'+',product)
if has_numpy:
core.addFn('floor',"floor({0:s})","\\lfloor {0:s} \\rfloor",1,np.floor)
core.addFn('ceil',"ceil({0:s})","\\lceil {0:s} \\rceil",1,np.ceil)
core.addFn('round',"round({0:s})","\\lfloor {0:s} \\rceil",1,np.round)
core.addFn('sin',"sin({0:s})","\\sin\\left({0:s}\\right)",1,np.sin)
core.addFn('cos',"cos({0:s})","\\cos\\left({0:s}\\right)",1,np.cos)
core.addFn('tan',"tan({0:s})","\\tan\\left({0:s}\\right)",1,np.tan)
core.addFn('re',"re({0:s})","\\Re\\left({0:s}\\right)",1,np.real)
core.addFn('im',"re({0:s})","\\Im\\left({0:s}\\right)",1,np.imag)
core.addFn('sqrt',"sqrt({0:s})","\\sqrt{{{0:s}}}",1,np.sqrt)
core.addConst("pi",np.pi)
core.addConst("e",np.e)
core.addConst("Inf",np.Inf)
core.addConst("NaN",np.NaN)
else:
core.addFn('floor',"floor({0:s})","\\lfloor {0:s} \\rfloor",1,math.floor)
core.addFn('ceil',"ceil({0:s})","\\lceil {0:s} \\rceil",1,math.ceil)
core.addFn('round',"round({0:s})","\\lfloor {0:s} \\rceil",1,round)
core.addFn('sin',"sin({0:s})","\\sin\\left({0:s}\\right)",1,math.sin)
core.addFn('cos',"cos({0:s})","\\cos\\left({0:s}\\right)",1,math.cos)
core.addFn('tan',"tan({0:s})","\\tan\\left({0:s}\\right)",1,math.tan)
core.addFn('re',"re({0:s})","\\Re\\left({0:s}\\right)",1,complex.real)
core.addFn('im',"re({0:s})","\\Im\\left({0:s}\\right)",1,complex.imag)
core.addFn('sqrt',"sqrt({0:s})","\\sqrt{{{0:s}}}",1,math.sqrt)
core.addConst("pi",math.pi)
core.addConst("e",math.e)
core.addConst("Inf",float("Inf"))
core.addConst("NaN",float("NaN"))
if has_scipy:
core.addConst("h",scipy.constants.h)
core.addConst("hbar",scipy.constants.hbar)
core.addConst("m_e",scipy.constants.m_e)
core.addConst("m_p",scipy.constants.m_p)
core.addConst("m_n",scipy.constants.m_n)
core.addConst("c",scipy.constants.c)
core.addConst("N_A",scipy.constants.N_A)
core.addConst("mu_0",scipy.constants.mu_0)
core.addConst("eps_0",scipy.constants.epsilon_0)
core.addConst("k",scipy.constants.k)
core.addConst("G",scipy.constants.G)
core.addConst("g",scipy.constants.g)
core.addConst("q",scipy.constants.e)
core.addConst("R",scipy.constants.R)
core.addConst("sigma",scipy.constants.e)
core.addConst("Rb",scipy.constants.Rydberg)

View File

@@ -0,0 +1,49 @@
_tol = 1e-5
def sim(a,b):
if (a==b):
return True
elif a == 0 or b == 0:
return False
if (a<b):
return (1-a/b)<=_tol
else:
return (1-b/a)<=_tol
def nsim(a,b):
if (a==b):
return False
elif a == 0 or b == 0:
return True
if (a<b):
return (1-a/b)>_tol
else:
return (1-b/a)>_tol
def gsim(a,b):
if a >= b:
return True
return (1-a/b)<=_tol
def lsim(a,b):
if a <= b:
return True
return (1-b/a)<=_tol
def set_tol(value=1e-5):
r"""Set Error Tolerance
Set the tolerance for detriming if two numbers are simliar, i.e
:math:`\left|\frac{a}{b}\right| = 1 \pm tolerance`
Parameters
----------
value: float
The Value to set the tolerance to show be very small as it respresents the
percentage of acceptable error in detriming if two values are the same.
"""
global _tol
if isinstance(value,float):
_tol = value
else:
raise TypeError(type(value))