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PROJECT TO MAKE CALENDER IN #C
#include<stdio.h>
#include<stdlib.h>
int get_1st_weekday(int y);
void main()
{
system("color 4F");
int year,i,j,n,a,weekday=0,startingday;
printf("\n ENTER THE DESIRED YEAR \n");
scanf("%d",&year);
printf("\n-------------------CALENDER BY SHIVAYA------------------------------\n");
char *months[]={"JANUARY","FABURARY","MARCH","APRIL","MAY","JUNE","JULY","AUGUST","SEPTEMBER","OCTOBER","NOVEMBER","DECEMBER"};
int monthdays[]={31,28,31,30,31,30,31,31,30,31,30,31};
if((year%4==0&&year%100!=0)||year%400==0)
monthdays[1]=29;
startingday=get_1st_weekday(year);
printf("\n THE CALENDER OF %d IS BELOW \n",year);
for(i=0;i<12;i++)
{
n=monthdays[i];
printf("\n--------------------%s------------------\n",months[i]);
printf("\n SUN MON TUE WED THURS FRI SAT \n");
for(weekday=0;weekday<startingday;weekday++)
printf(" ");
for(j=1;j<=n;j++)
{
printf("%5d",j);
if(++weekday>6)
{
printf("\n");
weekday=0;
}
startingday=weekday;
}
}
getch();
}
int get_1st_weekday(int y )
{
int d;
d=(((y-1)*365+(y-1)/4-(y-1)/100+(y/400)+1)%7 );
return d;
}
SOURCE CODE FOR DIGITAL CLOCK IN #C
/* Program to create a digital clock in C programming language */
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<time.h>
void main()
{system("color 3F");
int h=0,m=0,s=0;
double i;
system("cls");
printf("\n ENTER THE TIME FORMAT IN HH:MM:SS \n");
scanf("\n%d%d%d",&h,&m,&s);
start:
for(h;h<24;h++)
{
for(m;m<60;m++)
{
for(s;s<60;s++)
{ system("color 1F");
system("cls");
for(i=1;i<=90;i++)
printf("-");
printf("\n\tDIGITAL CLOCK PROGRAMMED BY SHIVAY SHARMA \n");
printf("\n\n\n\t\t %d:%d:%d ",h,m,s);
if(h<12)
{
printf("AM");
}
else
{
printf("PM");
}
printf("\n\t\t\v 1 JANUARY 2021\n");
for(i=0;i<361999999;i++)
i++;
i--;
}s=0;
}m=0;
}h=0;
goto start;
getche();
}
HOW TO MAKE MULTIFUNCTIONAL CALCULATOR IN C#
BELOW IS A SOURCE CODE WHERE I HAD EXPLAINED HOW TO MAKE MULTIFUNCTIONAL CALCULATOR IN C
//MULTIFUNCTIONAL CALCULATOR
#include<stdio.h>
#include<conio.h>
#include<math.h>
#define PI 3.14
void mul();
void simple();
void alzebra();
void matrix();
void sub();
void trans();
void deter();
void trigno();
void add();
void table();
void main()
{
system("color 4F");
char a;
printf("\n------------- PROGRAMMED BY SHIVAYA ---------------\n");
printf("\n================================================================\n");
printf("\n MULTIFUNCTIONAL CALCULATOR \n");
printf("\n================================================================\n");
printf("\n PRESS 'S' FOR SIMPLE CALCULATOR \n");
printf("\n PRESS 'E' FOR ALZEBRIC CALCULATOR \n");
printf("\n PRESS 'M' FOR MATRIX CALCULATOR \n");
printf("\n PRESS 'T' FOR TRIGNOMETRIC CALCULATOR \n");
printf("\n PRESS 'P' FOR MULTIPLICATIN TABLE OF ANY NUMBER \n");
scanf("%c",&a);
switch(a)
{
case 'S':
simple();
break;
case 'E':
alzebra();
break;
case 'M':
matrix();
break;
case 'T':
trigno();
break;
case 'P':
table();
break;
default:
printf("\n YOUR CHOICE IS INNCORRECT \n");
break;
}
}
void simple()
{
system("color 5F");
system("cls");
printf("\n===========================================\n");
printf("\n SIMPLE CALCULATOR=======\n");
printf("\n===========================================\n");
float n1,n2;
char op;
float result;
printf("\n ENTER THE FIRST NUMBER \n");
scanf("%f",&n1);
printf("\n ENTER THE SECOND NUMBER \n");
scanf("%f",&n2);
printf("\n SELECT THE OPERATER '+','-','*','/' FOR CALCULATION \n");
scanf("\n%c",&op);
switch(op)
{
case '+':
result=n1+n2;
printf("\n ADDITION=%f \n",result);
break;
case '-':
result=n1-n2;
printf("\n SUBTRACTION=%f \n",result);
break;
case '*':
result=n1*n2;
printf("\n PRODUCT=%f \n",result);
break;
case '/':
result=n1/n2;
printf("\n DIVISION=%f \n",result);
break;
default:
printf("\n PLEASE SELECT THE CORRECT OPPERATER \n");
break;
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
}
void alzebra()
{
system("color 7F");
system("cls");
float a,b,c,r;
char l;
printf("\n==============================================\n");
printf("\n ALZEBRIC CALCULATOR \n");
printf("\n==============================================\n");
printf("\n ENTER THE VALUE OF 'a'\n");
scanf("%f",&a);
printf("\n ENTER THE VALUE OF 'b'\n");
scanf("%f",&b);
printf("\n ENTER THE VALUE OF 'c' IF EXIST \n");
scanf("%f",&c);
printf("\n PRESS 1. FOR (a+b)whole square \n");
printf("\n PRESS 2. FOR (a-b)whole square \n");
printf("\n PRESS 3. FOR (a)square-(b)square \n");
printf("\n PRESS 4. FOR (a)square+(b)square \n");
printf("\n PRESS 5. FOR (a+b+c)whole square \n");
printf("\n PRESS 6. FOR (a-b-c)whole square \n");
printf("\n PRESS 7. FOR (a+b)whole cube \n");
printf("\n PRESS 8. FOR (a-b)whole cube \n");
printf("\n PRESS 9. FOR (a)cube-(b)cube \n");
printf("\n PRESS 10.FOR (a)cube+(b)cube \n");
scanf("\n%c",&l);
switch(l)
{
case '1':
system("color 3F");
system("cls");
r=a*a+b*b+2*a*b;
printf("\n WHOLE SQUARE OF (a+b) IS %f \n",r);
break;
case '2':
system("cls");
r=a*a-2*a*b+b*b;
printf("\n WHOLE SQUARE OF (a-b) is %f \n",r);
break;
case '3':
system("cls");
r=(a-b)*(a+b);
printf("\n (a)square-(b)square IS EQUEL TO %f \n",r);
break;
case '4':
system("cls");
r=(a*a)+(b*b)+(2*a*b)-2*a*b;
printf("\n (a)square+(b)square IS EQUEL TO %f \n",r);
break;
case '5':
system("cls");
r=(a*a)+(b*b)+(c*c)+(2*a*b)+(2*b*c)+(2*c*a);
printf("\n(a+b+c)whole square IS EQUEL TO %f \n",r);
break;
case '6':
system("cls");
r=(a*a)+(b*b)+(c*c)-(2*a*b)+(2*b*c)-(2*c*a);
printf("\n a-b-c whole square IS EQUEL TO %f \n",r);
break;
case '7':
system("cls");
r=(a*a*a)+3*(a*a*b)+3*a*b*b+(b*b*b);
printf("\n (a+b)whole cube IS EQUEL TO %f \n",r);
break;
case '8':
system("cls");
r=(a*a*a)-(b*b*b)-3*a*b*(a-b);
printf("\n (a-b)whole cube IS EQUEL TO %f \n",r);
break;
case '9':
system("cls");
r=(a-b)*(a*a)+a*b+(b*b);
printf("\n a(cube)-b(cube) IS EQUEL TO %f \n",r);
break;
case 'T':
system("cls");
r=(a+b)*(a*a)-(a*b)+(b*b);
break;
default:
printf("\n YOUR CHOICE IS INNCORRECT \n");
break;
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
}
void matrix()
{
system("color CF");
system("cls");
int i,j,n,m,p,q;
char choice;
printf("\n==============================================\n");
printf("\n MATRIX CALCULATOR \n");
printf("\n==============================================\n");
printf("\n PRESS '+' FOR MATRIX ADDITION \n");
printf("\n PRESS '-' FOR MATRIX SUBTRACTION \n");
printf("\n PRESS '*' FOR MATRIX MULTIPLICTION \n");
printf("\n PRESS 'T' FOR TRANSPOSE FIRST MATRIX \n");
printf("\n PRESS 'D' TO FIND THE DETERMINENT OF MATRIX \n");
scanf("\n%c",&choice);
switch(choice)
{
system("cls");
case '+':
add();
break;
case '-':
sub();
break;
case '*':
mul();
break;
case 'T':
trans();
break;
case 'D':
deter();
break;
default:
printf("\n YOUR CHOICE IS INNCORRECT \n");
break;
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
}
void add()
{ system("color 9F");
int a[10][10],b[10][10],c[10][10];
int i,j;
printf("\n ENTER THE ELEMENTS OF FIRST MATRIX \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("\n ENTER THE ELEMENTS OF SECOND MATRIX \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&b[i][j]);
}
}
printf("\n THE SUM OF TWO MATRIX IS :");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
c[i][j]=a[i][j]+b[i][j];
printf(" %d",c[i][j]);
}
printf("\n");
}
}
void sub()
{ system("color EF");
int a[10][10],b[10][10],c[10][10];
int i,j;
printf("\n ENTER THE ELEMENTS OF FIRST MATRIX \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("\n ENTER THE ELEMENTS OF SECOND MATRIX \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&b[i][j]);
}
}
printf("\n THE SUBTRACTION OF TWO MATRIX IS :\n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
c[i][j]=a[i][j]-b[i][j];
printf(" %d ",c[i][j]);
}
printf("\n");
}
}
void mul()
{
system("color 3F");
int i,j,k,sum;
int a[10][10],b[10][10],c[10][10];
printf("\n ENTER THE ELEMENTS OF FIRST MATRIX \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("\n ENTER THE ELEMENTS OF SECOND MATRIX \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&b[i][j]);
}
}
printf("\n THE PRODUCT OF TWO MATRIX IS :");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
sum=0;
for(k=0;k<=2;k++)
sum=sum+a[i][k]*b[k][j];
c[i][j]=sum;
}
}
printf("\n THE PRODUCT OF TWO MATRIX IS: \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
printf(" %d ",c[i][j]);
}
printf("\n");
}
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
void trans()
{
system("color 0F");
int a[10][10],c[10][10];
int i,j;
printf("\n ENTER THE ELEMENTS OF THE MATRIX \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("\n THE TRANSPOSE OF THE MATRIX IS : \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
c[i][j]=a[j][i];
}
}
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
printf("%d ",c[i][j]);
}
printf("\n");
}
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
void deter()
{
system("color 1F");
int a[10][10],det,i,j;
printf("\nENTER THE DIFFERENT ELEMENTS OF THE MATRIX \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("\n YOUR MATRIX IS : \n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
printf(" %d ",a[i][j]);
}
printf("\n");
}
det=(a[0][0]*(a[1][1]*a[2][2]-a[2][1]*a[1][2])-a[0][1]*(a[1][0]*a[2][2]-a[2][0]*a[1][2])+a[0][2]*(a[1][0]*a[2][1]-a[2][0]*a[1][1]));
printf("\n THE DETERMINENT IS %d \n",det);
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
void trigno()
{
system("color 4F");
system("cls");
char ch;
double a,b,c;
printf("\n PRESS 'S'TO CALCULATE sin \n");
printf("\n PRESS 'C'TO CALCULATE cos \n");
printf("\n PRESS 'T'TO CALCULATE tan \n");
printf("\n PRESS 'E'TO CALCULATE cosecent \n");
printf("\n PRESS 'F'TO CALCULATE secent \n");
printf("\n PRESS 'O'TO CALCULATE cot \n");
scanf("\n%c",&ch);
if(ch=='S')
{
printf("\n ENTER THE ANGLE i.e. VALUE OF ANGLE \n");
scanf("\n%lf",&a);
b=(PI/180)*a;
c=sin(b);
printf("\n THE VALUE OF sin%lf IS %lf \n",a,c);
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
else if(ch=='C')
{
printf("\n ENTER THE ANGLE i.e. VALUE OF ANGLE \n");
scanf("\n%lf",&a);
b=(PI/180)*a;
c=cos(b);
printf("\n THE VALUE OF cos%lf IS %lf \n",a,c);
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
else if(ch=='T')
{
printf("\n ENTER THE ANGLE i.e. VALUE OF ANGLE \n");
scanf("\n%lf",&a);
b=(PI/180)*a;
c=tan(b);
printf("\n THE VALUE OF tan%lf IS %lf \n",a,c);
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
else if(ch=='E')
{
printf("\n ENTER THE ANGLE i.e. VALUE OF ANGLE \n");
scanf("\n%lf",&a);
b=(PI/180)*a;
c=sinh(b);
printf("\n THE VALUE OF cosecent%lf IS %lf \n",a,c);
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
else if(ch=='F')
{
printf("\n ENTER THE ANGLE i.e. VALUE OF ANGLE \n");
scanf("\n%lf",&a);
b=(PI/180)*a;
c=cosh(b);
printf("\n THE VALUE OF secent%lf IS %lf \n",a,c);
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
else if(ch=='O')
{
printf("\n ENTER THE ANGLE i.e. VALUE OF ANGLE \n");
scanf("\n%lf",&a);
b=(PI/180)*a;
c=tanh(b);
printf("\n THE VALUE OF sin%lf IS %lf \n",a,c);
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}
}
void table()
{
system("cls");
system("color 9F");
int n,i,m;
printf("\n ENTER THE NUMBER ,FOR WHICH YOU WANT ITS MULTIPLICATION TABLE OF \n");
scanf("%d",&n);
printf("\n ENTER THE RANGE OF YOUR MULTIPLICATION TABLE \n");
scanf("%d",&m);
for(i=1;i<=m;i++)
{
printf("\n%dx%d=%d\n",i,n,i*n);
}
printf("\n PRESS ANY KEY TO CONTINUE \n");
getch();
}