3. Consider the abstract syntax for the following expression language. The constant Zero denotes 0, and the operation Succ computes successors. The operation Sum takes a list of expressions as arguments and computes its sum. IfPos returns the value of the first expression if its value is greater than 0. Otherwise, it returns the value of the second expression. You may use the function sum :: [Int] -> Int in your solution. data Expr = Zero | Succ Expr | Sum [Expr] | IfPos Expr Expr Define the semantics of the expression language as a function sem of the following type. sem :: Expr -> Int

Matlab Programming

The order in which parameters are provided to a function when it takes multiple arguments holds significance?

def optimize_tail_calls(original_scheme_eval): """Return a properly tail recursive version of an eval function.""" def optimized_eval(expr, env, tail=False): """Evaluate Scheme expression EXPR in Frame ENV. If TAIL, return an Unevaluated containing an expression for further evaluation. """ if tail and not scheme_symbolp(expr) and not self_evaluating(expr): return Unevaluated(expr, env) result = Unevaluated(expr, env) # fill in code code here while isinstance(result, Unevaluated): #code here return optimized_eval scheme_eval = optimize_tail_calls(scheme_eval)

In C programming!! Function prototype and implementation for the calculateDivisors function that takes in an integer parameter, calculates the sum of its divisors, and returns that sum (as an integer value) A structure that represents what is represented on each line of output, e.g., o Linenumbero Sumofthedivisorsforthatlinenumbero Characterarraycontaining“Perfect”,“Deficient”,or“Abundant” Pointer declared within the main that will be used to point to an area of memory containing a collection of these structs Dynamically allocated memory for the number of structs necessary You will assign values to each struct via the pointer A loop that goes from X to Y, where X and Y are the numbers inputted by the user at the command line argumento Note:becausetheuserisenteringinputhere,youwillneedtocheckforreasonableness: § The value of X must be greater than or equal to 2§ The value of Y must be greater than the value of X§ If either one of the above conditions are not met, you should…

An application that uses user-defined functions has to provide function prototypes.

Consider the following structure definition. Write a C/C++ function that takes an array of struct student with its size and applies a curve system like if the student scored below 50, 1dd 10 points, if it is above 50, add 2 points. The lowest possible mark is 0 and the highest possible mark is 10. struct student{ int ID; int score; void applycurve (struct student a[ ], int size)

True or False : The concept of function abstraction hinders our code development by confusing us with the details of the function.

Write a function named contains-double in Scheme that takes a list as input and returns true if an item every appears twice in a row. You may assume the list is flat (i.e., no nested lists).

Let the function fun be defined as:  int fun(int &k) {   k += 4;    return 3 * k -1; }   Suppose the function fun was used in a program as follows:   void main() {    int i = 10, j = 10, sum1, sum2;    sum1 = (i / 2) + fun(i);    sum2 = fun(j)) + ( j / 2); }   A. What are the values of sum1 and sum2 if the operands in the expressions are evaluated left to right? B. What are the values of sum1 and sum2 if the operands in the expressions are evaluated right to left?