Final python | Python Fiddle

import math
 
h= raw_input("input Height") #maximum hight
a= raw_input("input Angle") #angle
v= raw_input("input Initial Velocity") #initial velocity
t= raw_input("input Time") #total time
r= raw_input("input Range") #range
vx= "" # horizontal velocity
vy= "" # vertical velocity
g = 9.81 # gravity constant
def height(): # checks if the hihgt varialbe is empty and if so, it calculates it
		global a #imorts all of the globals into function
    	global v
    	global t
    	global r
    	global vx
    	global vy
    	global g
    	global h
		if h == "" and r != "" and a != "": # if we have range and angle values, it calculates height
			a_rad = float(a) * math.pi / 180 #1 Converting a - angle in degrees into a_rad - angle in radians 
        	h = float(r) * math.tan(a_rad) / 4
 
         
        elif h == "" and v != "" and a != "":  # if we have initial velocity and angle values, it calculates height
                a_rad = float(a) * math.pi / 180 #2 Converting a - angle in degrees into a_rad - angle in radians 
                vy = float(v) * math.sin(a_rad) # using initialvelocity magnitude we clculate horizontal velocity - vy
                h = vy**2 / (2 * g) # calculates hight
 
        elif h == "" and t != "":  # if we have time value, it calculates height
                h = g * (float(t)/2)**2 / 2
 
 
     
def initial_velocity():
    global v  # Imports all of the globals into the function
    global t
    global a
    global r
    global vx
    global vy
    global g
    if v == "" and r != "" and t != "": # If we have range and time values, we can find initial velocity
        vx = float(r)/float(t) # Calculates horizontal initial velocity
        vy = g*(float(t)/2) # Calculates vertical initial velocity
        v = math.sqrt(vx**2 + vy**2) # Calculates Initial velocity
    elif v == "" and h != "" and a != "":
        a_rad = float(a)*math.pi/180
        v = math.sqrt((2*g*float(h))/(math.sin(a_rad)**2))
    elif v == "" and r != "" and a != "":
        a_rad = float(a)*math.pi/180
        v = math.sqrt((float(r)*g)/(2*math.sin(a_rad)*math.sin(a)))
  
def distance(): #if the distance variable is empty, then the program will calculate it.
    global h
    global r
    global t
    global a
    global v
    global r
    global vx
    global vy
 
    if r== '' and v != '' and a != '': #if we have the velocity and the angle, we can find the range.
        a_rad = float(a) * math.pi/180
        r = (float(v)**2/g)*(2*math.sin(a_rad)*math.cos(a_rad))       
 
 
    elif r == '' and v != '' and t != '' and a != '':
        a_rad = float(a) * math.pi/180
        vx = float(v)*math.cos(a_rad)
        r = vx * t
 
 
    elif r == '' and a != '' and h != '':
        a_rad = float(a) * math.pi/180
        r = 4*h/math.tan(a)
 
def time(): #The function for finding flight time
    global a
    global v
    global h
    global t
    global r
    global g
    if t=="" and a != "" and v != "": #first condition
        a_rad= float(a)*math.pi/180
        v= float(v)
        t= (2*v*math.sin(a_rad))/g
 
    elif t=="" and h != "": #second condition
        h=float(h)
        t= 4*h/math.sqrt(2*g*h)
 
    elif t=="" and r != "" and a != "":
        r=float(r)
        a=float(a)
        t= (2*r*math.tan(a_rad))/math.sqrt(2*g*r*math.tan(a_rad))
 
             
def angle():
    global h
    global r
    global t
    global a
    global v
    global g
    if a == "" and r != "" and v != "": # if we have range and angle values, it calculates height
        r=float(r)
        v=float(v)
        a= 0.5*(math.degrees(math.asin((r*g)/v**2))) # caculate the value of angle in degree angle=1/2*(arc sin(r*g)/v2))
 
#def reset():
     
def check():
    if (v=="" or r=="" or h==""or a=="" or t=="") and ():
        return True
    	floating_list()
    else:
        return False
        
def floating:
    global h
    global r
    global t
    global a
    global v
    global g
    floating_list=[h,t,v,r,a]
    for x in floating_list:
        if x.isdigit() == True
            x = float(x)
        print type(h)
     	else:
            print 'Input a number!'
        
def calculate():
    floating()
    while check():
        time()
        height()
        initial_velocity()
        distance()
        angle()
    else:
        print a
        print h
        print r
        print v
        print t
 
 
calculate()

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