Advanced features of c, C/C++ Programming

Assignment Help:

  We are now quite happy to use the basic mathematical expressions, however in engineering we use scientific functions i.e Sin , Cos  , ln etc . Within C we have the following functions

    double atan(double);
    double cos(double);
    double exp(double);
    double fabs(double);
    double log(double);
    double sin(double);
    double sqrt(double);
    double tan(double);
    double acos(double);
    double asin(double);
    double atan2(double, double);
    double ceil(double);
    double cosh(double);
    double floor(double);
    double fmod(double, double);
    double frexp(double, int *);
    double ldexp(double, int);
    double log10(double);
    double modf(double, double *);
    double pow(double, double);
    double sinh(double);
    double tanh(double);
 
  These are similar to the scientific functions on a calculator. We can print out the square root of 4 by assigning the function to a variable i.e.
 
    A =4;
    answer = sqrt(A);   or

    answer = sqrt(4);
 
The overall format of any function is a function name and the value (parameters) passed to it and returned. Within  C  we have only have a single type of function and one value can only be returned ( Although there are tricks to get around this

The syntax of a function is
 
type Function name(type variable, type variable etc )
  {
    Any local variables used by the function
    Function program
 
    return ( variable or value ); 
  }
 
Some important points regarding functions are that the Variables declared are local which means that the main program doesn't see them. The return commands variable is the only parameter returned. Within C all functions should have a prototype description. This is a single line statement which informs the compiler of the type of variables used in the function. In fact the description of the maths functions are in fact prototype headers. This is time to introduce a new type i.e. 'void', by default C takes no type as int, therefore void means no variable.


Related Discussions:- Advanced features of c

Create a album using multi-dimensional arrays, Create a Document that show ...

Create a Document that show information about albums. First create a paragraph or two about the purpose of the page and your interests in music: genres, styles, etc. Next have a

Database, write a c++ program to update employee records

write a c++ program to update employee records

Define functions with arguments and return values, Define Functions with ar...

Define Functions with arguments and return values? The earlier category functions receive values from the calling function through arguments but do not send back any value rath

Calculate the area of circle using c program, Calculate the area of circle ...

Calculate the area of circle using c program: const float Pi = 3.1415926;   inline float area(const float r) {return Pi * r * r;}   main() {    float radius;

Sdsds, Given an integer n and a permutation of numbers 1, 2 ... , n-1, n wr...

Given an integer n and a permutation of numbers 1, 2 ... , n-1, n write a program to print the permutation that lexicographically precedes the given input permutation. If the given

Private member functions, P r i va t e Member Functions: A private...

P r i va t e Member Functions: A private member functions can be called by the members of the same class.  Consider the following example.   c l a ss sample

Pawnbroker software to be written in vb, Pawnbroker software to be written ...

Pawnbroker software to be written in VB Project Description: I want software written for my pawnshop. I am currently using a program called pawnboss but would like to have my

What should one catch?, A: By keeping along with the C++ tradition of "ther...

A: By keeping along with the C++ tradition of "there's more than one method to do that" (translation: "give programmers options & tradeoffs so they can choose what's best for them

Create a stack using arrays, Problem : (a) Stacks can be implemented u...

Problem : (a) Stacks can be implemented using arrays. Write down the following C or C++ function to (i) create a stack (ii) add an element to a stack (push). (b) Expl

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd