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self.t = self.z
self.z = self.y
self.y = self.x
self.x = self.x
self.updateDisplays()
self.keip = False
self.needrup = False
def calculate(self, op):
"""Arithmetic calculations between x and y registers, then rotate down."""
try:
if op == '+/-':
self.x = self.x * -1
self.xdisplay.setText(str(self.x))
else:
if op == '+':
res = self.y + self.x
elif op == '-':
res = self.y - self.x
elif op == '*':
res = self.y * self.x
elif op == '/':
res = self.y / self.x
self.x = res
self.y = self.z
self.z = self.t
self.updateDisplays()
self.keip = False
self.needrup = True
except:
self.xdisplay.setText("ERROR")
def func(self, op, in_cnvrt=0, out_cnvrt=0):
"""Evaluate function op then put result in x-register, don't rotate stack.
if in_cnvrt: convert input value from degrees to radians.
if out_cnvrt: convert output value from radians to degrees."""
x = self.x
y = self.y
if in_cnvrt:
x = x * math.pi / 180
result = eval(op)
if out_cnvrt:
result = result * 180 / math.pi
self.x = result
self.xdisplay.setText(str(self.x))
self.keip = False
self.needrup = True
def mm2in(self):
if self.xdisplay.text():
self.x = self.x / 25.4
self.xdisplay.setText(str(self.x))
self.keip = False
self.needrup = True
def in2mm(self):
if self.xdisplay.text():
self.x = self.x * 25.4
self.xdisplay.setText(str(self.x))
self.keip = False
self.needrup = True
def storex(self):
self.mem = self.x
self.keip = False
self.needrup = True
def recallx(self):
self.rotateup()
self.xdisplay.setText(str(self.mem))
self.keip = False
self.needrup = True
def rotateup(self, loop=1):
x = self.t
self.t = self.z
self.z = self.y
self.y = self.x
if loop:
self.x = x
self.updateDisplays()
def rotatedn(self):
x = self.x
self.x = self.y
self.y = self.z
self.z = self.t
self.t = x
self.updateDisplays()
def trimx(self):
trimmedStrVal = self.xdisplay.text()[:-1]
try:
self.xdisplay.setText(trimmedStrVal)
self.x = float(trimmedStrVal)
except ValueError:
self.clearx()
def swapxy(self):
self.x, self.y = (self.y, self.x)