sync forked repo

pre-session/basic.py

@@ -1,43 +1,31 @@
-number = 6677  # integer 
-
-number_decimal = 18.6 #cpp or java double or float
-
-height = 1.8
-
-name = ' Rohitash Chandra'  # string
-
-print(number)
-print(number, ' is number')
-print(number_decimal, ' is decimal ')
-print(height,'               is height ')
-print(name)
-print(name, ' is my name')
-
-print(' lets calculate')
-
-
-radius = 12.25
-pi = 3.14
-
-area_circle = pi * radius * radius 
-
-print(area_circle, ' is area of the circle')
-
-
-# triangle (ask the user for input)
-
-
-print('Good day mate. This program claculates area of triangle')
-
-print('please enter the base: ')
-base = input()
-
-print('please enter the height: ')
+print('Your name?')
+name = input()
+print('Your height (m)?')
 height = input()
-
-print(base, height,  ' are the base and height, respectively')
-
-area_triangle = 0.5 * int(base) * int(height)
-
-
-print(area_triangle,  ' is the area of the triangle')
+print('Your weight (kg)?')
+weight = input()
+
+def bmi (h,w):
+    bmi = w/(h*h)
+    if bmi < 18.5: 
+        bmi_status = 'underweight'
+    elif bmi >= 18.5 and bmi < 25: 
+            bmi_status = 'normal'
+    elif bmi >= 25 and bmi < 30: 
+            bmi_status = 'overweight'
+    elif bmi >= 30: 
+            bmi_status = 'obese'
+    return(bmi, bmi_status)
+
+BMI, BMI_status = bmi(float(height), float(weight))
+
+print('Hi ',name,'.')
+print('Your height is ',height,' and weight is ',weight,'.')
+print('Your BMI is ', BMI, ' and you are ', BMI_status,'.')
+
+
+# comments
+'''commenting
+Oh dear
+this is so long
+'''

pre-session/basic_calculations.py

@@ -6,56 +6,31 @@
 
 
 def area_circle(radius):
-
 	area = pi * radius * radius
-
-	#print(area, ' is print statement in the func')
-
 	return area 
 
 def volume_sphere(radius):
-	# you can try
-
 	return 0
 
-
-
 def volume_cylinder(radius, height):
-
 	area = area_circle (radius)
-
 	volume = area * height
-
 	return volume, area
-
-
-
-
 #----------------------------------
 
 
 # now we call the above functions 
 
 #ask the user (exercise)
-radius = 5555
+print('Radius?')
+radius = float(input())
 
 area = area_circle (radius)
 print(area, 'is the area in square meters')
 
-
-height = 44
+print('Height?')
+height = float(input())
 vol, ar = volume_cylinder (radius, height)
 
-
 print(vol, 'is the volume  in cubic meters')
-
-
-print(area, 'is the area of the top of the cylinder')
-
-
-
-#warm up exercise. Try implementing different functions for the rest 
-# of the examples here: https://byjus.com/volume-formulas/
-
-# try to ask the user to input information (such as base, height, radius etc)
-
+print(area, 'is the area of the top of the cylinder')

pre-session/tempCodeRunnerFile.py

@@ -0,0 +1,46 @@
+number = 123  # integer 
+
+number_decimal = .123 #cpp or java double or float
+
+height = 1.73
+
+name = 'Hakiim Jamaluddin'  # string
+
+print(number)
+print(number, 'is number')
+print(number_decimal, ' is decimal ')
+print(height,'is height ')
+print(name)
+print(name,'is my name')
+
+print('lets calculate')
+
+
+radius = 12.25
+pi = 3.14
+
+area_circle = pi * radius * radius 
+
+print(area_circle, ' is area of the circle')
+
+
+# triangle (ask the user for input)
+
+
+print('Good day mate. This program claculates area of triangle')
+
+print('please enter the base: ')
+base = input()
+
+print('please enter the height: ')
+height = input()
+
+print(base, height,  ' are the base and height, respectively')
+
+area_triangle = 0.5 * int(base) * int(height)
+
+
+print(area_triangle,  ' is the area of the triangle')
+
+
+

session1/loops/basic_loops.py

@@ -6,7 +6,7 @@
 
 # while loop 
 
-print(' basic while loop ')
+'''print(' basic while loop ')
 
 i = 1
 while i < 6:
@@ -60,12 +60,15 @@
 for x in fruits:
   if x == "banana":
     break
-  print(x)
+  print(x)'''
 
 
 
 
 # Powers of 2 (for no obvious reason)
+from _typeshed import StrPath
+
+
 power = 1
 for y in range(0 ,21, 4):
     print("2 to the", y, "is", power)
@@ -103,4 +106,13 @@
     print(y,end=' ')
 print()
 
+#### SUMMARY ####
+
+'''for i in range(start, end_plus_one, increment_if_not_one):
+      p = x*w
+      print('p is ',p)'''
 
+'''i = start
+while i < end_plus_one:
+  p = x*w
+  print('p is ',p)'''

session1/loops/give_change.py

@@ -109,3 +109,11 @@
 # Can you use a stack of coins,  eg 10 coins of each denomination each ?
 
 # Can you simulate an old cashier machine at the supermarket?
+
+
+'''SUMMARY
+# rounding
+int(1.5) = 1
+# remainder
+25%20 = 5 
+'''

session1/loops/nested_loops.py

@@ -100,3 +100,34 @@ def main():
 
 if __name__ == '__main__':
     main()
+
+
+
+#### SUMMARY ####
+# python coding convention
+'''
+import a
+import b
+import c
+
+def function1(x,w):
+      p = x*w
+      return(p)
+
+def main():
+      write like the main in R
+      print('p is ',p)
+
+if__name__=='__main__':
+    main()
+
+# extra (indexing)
+three_dimen[2,2:4,:]
+vector[i]
+len(vector)
+# pandas data.frame
+nrow() = len(dt.index)
+ncol() = len(dt.columns)
+'''
+
+

session1/loops/nestedloops_draw.py

@@ -8,7 +8,7 @@
     for i in range(side):
         print('*', end = '  ')
     print()
-
+''' 
 i = 0
 print("Square Star Pattern - Nested While Loops") 
 
@@ -35,3 +35,4 @@
         print('*' if i in [j, m-1] or j == 0 else ' ', end='')
     print()
 
+''' 

session1/numpy/numpy_advanced.py

@@ -86,3 +86,35 @@ def main():
 
 if __name__ == '__main__':
     main()
+
+'''SUMMARY
+#vector
+a = np.array([1,2,3])
+b = np.array([1,2,3])
+vertical_stack = np.vstack((a,b)) #cbind()
+horizontal_stack = np.hstack((a,b)) #rbind
+
+#matrix
+a = np.array([1,2,3],[1,2,3])
+b = np.array([1,2,3],[1,2,3])
+
+ab = np.concatenate((a,b), axis = 0) becomes ([1,2,3],
+                                              [1,2,3],
+                                              [1,2,3],
+                                              [1,2,3])
+
+ab = np.concatenate((a,b), axis = None) becomes a vector
+
+# reshape
+object.reshape((nrow,ncol))
+
+# matrix change to vector 
+object.flatten()
+
+# indexing 
+object.shape[0] = nrow()
+object.shape[1] = ncol()
+
+# transpose
+np.transpose
+'''

session1/numpy/numpy_loadsave.py

@@ -73,19 +73,6 @@ def load_file(filename):
   plt.savefig('design_magic_traspose.png')
   plt.clf() # make sure you have this in all plots
 
-
-
-
-
-
-
-
-
-
-
-
-
-
 
 def main(): 
 
@@ -98,10 +85,17 @@ def main():
     plot_examples()
 
     load_file(filename)
-
-
-
-
 
 if __name__ == '__main__':
     main()
+
+
+'''SUMMARY
+ x = [1, 2, 3, 4]
+#numpy_x = 
+plt.plot(x)
+plt.ylabel('some numbers')
+#plt.show()
+plt.savefig('x.png')
+
+'''

session1/recursion/factorial_recursion.py

@@ -16,10 +16,7 @@ def factorial(x):
         fact = x * factorial(x-1)
         #print(x, fact, ' is fact')
         return fact
-
-
-
-
+
 def factorial_iteration(num):
     fac = 1
 
@@ -61,4 +58,13 @@ def factorial_iteration(num):
 
 print('ITERATION took time: ', end - start)
 
+'''SUMMARY
+to compute time taken
+import time
+start = time.time()
+OPERATIONS
+end = time.time()
+time_difference = end - start
 
+# Not sure factorial and recursion are useful in my works
+'''