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Write a python function that takes a string as an argument. This string will be a simple valid expression containing only characters “a”, “b”, “c” and “+”. Some examples of the input string: “a+b+c”, “a”, “a+a+b”.
Your function will have to return a string which will be a simple version of the input string. For example, if the input is “a+a+b”, output will be “2*a+b”,
Write a python function that takes a string as an argument and searches all
the characters having at least three occurrences (except the spaces and
special characters) in that string. Then, prepare and RETURN a dictionary
where the keys will be the characters and values will be summation of the
positions of those characters in the string. (You are not allowed to use
builtin .count() function here)
Popen() and Open() are:
Create a Java EE Web application to create a web application about music (songs, tutorials, instruments, etc.)
Functional requirements:
1. Proper UI (5 marks)
At least 2 tables in the database with CRUD feature and Normalization
Write an NS2 script to build 2-node point to point network. Implement three nodes point
– to – point network with duplex links between them. Set the queue size, vary the
bandwidth and find the number of packets dropped.
Maria has 4 bags while going to airport, she has been told that she can take an average of 50kg.Tell her to input the weights of each bag and calculate the mean weight.
Demonstrate use of Object Oriented Programming (OOP) principles, data structures and file handling operations to carry out the following tasks:
a) Define a class named Person, with child classes named Daughter and Son who also have have derived classes named GrandSon and GrandDaughter respectively. All child classes have derived genetic features and skills from Person. Create 5 methods for getting and setting genetic features, setting and getting skills and demonstrate the concept of polymorphism.
b) Modify the answer in a) and show how the person features are captured in a file called person.txt. Also create another method to read from the file person.csv and store the data in a list called persondata. Clearly show how exceptions are handled in your program
define a class named person with child classes named daughter and son who also have derived classes named grandson and granddaughter respectively
. Define the following vectors and matrices:
vec1 = np.array([ -1., 4., -9.])
mat1 = np.array([[ 1., 3., 5.], [7., -9., 2.], [4., 6., 8. ]]
Perform the following operations on the vector and matrices given above:
a. You can multiply vectors by constants.
Compute vec2 = (np.pi/4) * vec1
b. The cosine function can be applied to a vector to yield a vector of cosines.
Compute 1 vec2 = np.cos( vec2 )
How to randomly move object to different positions such as drawcircle() each time you run the c++ program. I have been given rushhour gane.so each time i run the c++ program the object is placed at a random position different from the previous position. Can it be done through rand() srand() or arrays. Please guide me how to do it.
