Absolute value (abs) :-
This function is used to absolute value of a numbers. The absolute means positive value.
#include<conio.h>
#include<math.h>
Void main ()
{
Clrscr();
Float a, res;
Cout<<"Enter value for a";
Cin>>a;
res=abs (a) ;
Cout<<"result is"<<res;
getch();
}
Void main ()
{
Clrscr();
Float a, res;
Cout<<"Enter value for a";
Cin>>a;
res=abs (a) ;
Cout<<"result is"<<res;
getch();
}
Note:- abs is used only for numeric value.
👉Output:-
Input is : Enter value for a 5.6
Output is :- 5
Input is : Enter value for a 7.9
Output is: 7
Absolute value (fabs)
This function is used to find the absolute value of decimal variables.
Syntax :-
#include<iostream.h>
#include<conio.h>
#include<math.h>
Void main()
{
Clrscr();
Float a, res;
Cout<<"Enter value for a";
Cin>>a;
res=fabs(a) ;
Cout<<"Result is"<<res;
getch() ;
}
👉Output:-
Input :- Enter value for a -9
Output:- 9
Input :- Enter value for a -4
Output:- 4
Floor (value)
This function is round down value.
#include<iostream.h>
#include<conio.h>
#include<math.h>
Void main ()
{
Clrscr() ;
Float a, res;
Cout<<"Enter value for a":
Cin>>a;
res=floor(a);
Cout<<"Result is "<<res;
Getch();
}
👉Output :-
Input :- Enter value for a 6.6
Output:- 6
Input :- Enter value for a 4.5
Output:- 4
Ceil (value)
This function round up the nearest numberic number value.
#include<iostream.h>
#include<conio.h>
#include<math.h>
Void main ()
{
Clrscr();
Float a, res;
Cout<<" Enter value for a ";
Cin>>a;
res=ceil (a) ;
Cout<<"Result is"<<res;
Getch() ;
}
👉Output:-
Input :- Enter value for a 5.9
Output:- 6
Input :- Enter value for a 4.7
Output:- 5
Fmod (divident and divider)
This function is used to remainder of decimal value.
#include<iostream.h>
#include<conio.h>
#include<math.h>
Void main ()
{
Clrscr() ;
Float a, res;
Cout<<"Enter value for a";
Cin>>a;
res=F mod (a, 5) ;
Cout<<"Result is "<<res;
Getch() ;
}
👉Output:-
Input :-Enter value for a 13
Output:- 1
Input :-Enter value for a 21
Output:- 2
After understanding these diffrent type of mathematical operator then solve some examples based on it..
Example 1: Write a programme to find cos value converting in radiun ??
Answer :
#include<iostream.h>
#include<conio.h>
Void main ()
{
Clrscr() ;
Float a, res;
Cout<<" Enter value for a ";
Cin>>a;
res=cos(a*3.14/180) ;
Cout<<" Result is "<<res;
getch() ;
}
👉Output:-
Input :- Enter value for a 2
Output:- 0.999391
Endl
Endl stands for end of the line it is a manipulator function used to insert a new line character.
#include<iostream.h>
#include<conio.h>
Void main ()
{
Clrscr() ;
Cout<<" I like computer "<<endl;
Cout<<" It is best subject "<<endl;
Cout<<" Learn computer subject every time ";
getch() ;
}
👉Output
Output:- I like computer
It is best subject
Learn computer subject every time.
Slash (\n)
Slash (\) n stands for end of the line it also works on as endl.
#include<iostream.h>
#include<conio.h>
Void main ()
{
Clrscr() ;
Cout<<" Hello\n hii\n welcome to by experts\n learn in c++ here\n Thank you ";
Getch() ;
}
👉Output:-
Output:- hello
hii
welcome to by experts
learn in c++ here
Thank you.
Slash(\) t
It is stands for tab character.
#include<iostream.h>
#include<conio.h>
Void main()
{
Clrscr() ;
Cout<<"hello\t hii\t welcome you by experts\t learn in c++ here \t Thank you ":
Getch () ;
}
👉Output:-
Output:- hello hii welcome to by experts learn in c++ here Thank you.
Slash (\) b:-
It is stands for backspace character . It takes the cursor one character backward. So that when you will type next thing the character ahead of cursor will be Overwritten.
#include<iostream.h>
#include<conio.h>
Void main ()
{
Clrscr() ;
Cout<<"hello\b hii ";
Getch () ;
}
👉Output:-
Output:- hellhii
Slash (\) r:-
slash (\) r stands for carriage return. It simply moves the coursor to the starting of the current line.
#include<iostream.h>
#include<conio.h>
Void main ()
{
Clrscr() ;
Cout<<" Jharkhand\r experts ";
Getch() ;
}
👉Output:-
Output:- Expertskhand
Note:-
These all are called special formatting character.
Manupulation Operators
Set w:-
Set w stands for set width we can set width of any display.
#include<iostream.h>
#include<conio.h>
#include<iomanip.h>
Void main ()
{
Clrscr() ;
Cout<<"set w (40) <<"Jharkhand ";
getch() ;
}
👉Output:-
Output:- Jharkhand
Note:-
Set w is the manipulator oprator..
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