def perm(str):
if len(str) < 2:
help.helper("perm")
return None
total = int(str[1])
pick = int(str[2])
return fact(total) / fact(total - pick)
def set(str):
global vars
if len(str) < 3:
help.helper("set")
return None
if str[1] == 'x' or str[1] == 'y' or str[1] == 'a':
print("Unable to set system variables")
else:
vars[str[1]] = float(str[2])
def get(str):
if len(str) < 2:
help.helper("get")
return None
global vars
try:
return vars[str[1]]
except:
pass
def set(str):
global vars
if len(str) < 3:
help.helper("set")
return None
if str[1] == 'x' or str[1] == 'y' or str[1] == 'a':
print("Unable to set system variables")
else:
vars[str[1]] = float(str[2])
def get(str):
if len(str) < 2:
help.helper("get")
return None
global vars
try:
return vars[str[1]]
except:
pass
def plot(args):
if len(args) < 2:
help.helper("points")
return None
xlist = []
ylist = []
for x in args[1:]:
pt = x.split(",")
if len(pt) > 1:
xlist.append(pt[0])
ylist.append(pt[1])
plt.plot(xlist,ylist,'o')
def plot(args):
if len(args) < 2:
help.helper("points")
return None
xlist = []
ylist = []
for x in args[1:]:
pt = x.split(",")
if len(pt) > 1:
xlist.append(pt[0])
ylist.append(pt[1])
plt.plot(xlist, ylist, 'o')
def intersect(args):
if len(args) < 4:
help.helper("intersect")
return None
eq1 = args[1]
eq2 = args[2]
rg = range(int(float(args[3])),int(float(args[4])))
pts1x,pts1y = genpoints(eq1,rg,'x')
pts2x,pts2y = genpoints(eq2,rg,'x')
out = []
for x in rg:
if pts1x[x] == pts2x[x] and pts1y[x] == pts2y[x]:
out.append((pts1x[x],pts1y[x]))
for x in out:
print("(%s)\n" % (x,))
def sigma(args):
# equation variable start end
if len(args) < 4:
help.helper("sigma")
return None
eq = args[1]
var = args[2]
start = int(float(args[3]))
end = int(float(args[4]))
result = 0
# end+1 for inclusive range
for x in range(start,end+1):
result += parser.evaluate(eq,{var:x})
print("%d" % result)
def intersect(args):
if len(args) < 4:
help.helper("intersect")
return None
eq1 = args[1]
eq2 = args[2]
rg = range(int(float(args[3])), int(float(args[4])))
pts1x, pts1y = genpoints(eq1, rg, 'x')
pts2x, pts2y = genpoints(eq2, rg, 'x')
out = []
for x in rg:
if pts1x[x] == pts2x[x] and pts1y[x] == pts2y[x]:
out.append((pts1x[x], pts1y[x]))
for x in out:
print("(%s)\n" % (x, ))
def stats(lst):
if len(lst) < 2:
help.helper("stats")
return None
list = []
for x in lst[1:]:
list.append(int(x))
#print(list)
st = {}
try:
st["mean"] = mean(list)
st["standard deviation"] = stdev(list)
st["median"] = median(list)
st["mode"] = mode(list)
except:
pass
for x, y in st.items():
print("%s = %d" % (x, y))
def stats(lst):
if len(lst) < 2:
help.helper("stats")
return None
list = []
for x in lst[1:]:
list.append(int(x))
#print(list)
st= {}
try:
st["mean"] = mean(list)
st["standard deviation"] = stdev(list)
st["median"] = median(list)
st["mode"] = mode(list)
except:
pass
for x,y in st.items():
print("%s = %d" % (x,y))
def graph(str):
if len(str) < 4:
help.helper("graph")
return None
global numfig
try:
plt.figure(int(str[5]))
except:
plt.figure(numfig)
numfig += 1
plt.title(str[2])
plt.grid()
start = int(float(str[3]))
end = int(float(str[4]))
rg = range(start, end)
if str[1] == 'x':
xeq(str[2], rg)
elif str[1] == 'y':
yeq(str[2], rg)
def graph(str):
if len(str) < 4:
help.helper("graph")
return None
global numfig
try:
plt.figure(int(str[5]))
except:
plt.figure(numfig)
numfig += 1
plt.title(str[2])
plt.grid()
start = int(float(str[3]))
end = int(float(str[4]))
rg = range(start,end)
if str[1] == 'x':
xeq(str[2],rg)
elif str[1] == 'y':
yeq(str[2],rg)
def combo(str):
if len(str) < 2:
help.helper("combo")
total = int(str[1])
pick = int(str[2])
return fact(total) / (fact(pick) * fact(total - pick))