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I hope you like it

// Series answer
#include <stdio.h>
#include <math.h>

int main() {
float ans = 1.0, temp = 1.0, x = 2.0;
int iterations = 3;

for (int i = 1; i <= iterations; i++) {
temp = temp * x / i;
ans += temp;
}

printf("Result from series expansion: %f\n", ans);

float expResult = exp(x);
printf("Result from inbuilt function (exp()): %f\n", expResult);

if (fabs(ans - expResult) < 0.0001) {
printf("The results match.\n");
} else {
printf("The results do not match.\n");
}

return 0;
}
// @C_code5

// Computer related numerical techniques

// Decimal to binary conversion with steps
#include <stdio.h>

void integer(int intgr) {
  if (intgr < 1)
    return;

  printf("Now dividing decimal by 2:\n");
  char temp[32];
  int index = 0;
  while (intgr > 0) {
    printf("%d / 2    reminder %d\n", intgr, intgr % 2);
    temp[index++] = intgr % 2 + '0';
    intgr = intgr / 2;
  }

  printf("\nBinary is ");
  for (int i = index - 1; i >= 0; i--) {
    printf("%c", temp[i]);
  }
  printf("\n");
}

int main() {
  int dcml;
printf("Enter decimal number: ");
scanf("%d", &dcml);
int intgr = (int)dcml;
  printf("Given decimal %d\n\n", dcml);
  integer(intgr);

  return 0;
}

//performs different operations on two numbers...
#include<stdio.h>
int add(int k,int l) {
    return k+l;
}

int sub(int k,int l) {
    return k-l;
}

int multi(int k,int l) {
    return k*l;
}
float div(int k,int l) {
    return k/(float)l;
}
int main() {
    int a,b;
    char Op;
    printf("Enter first number: ");
    scanf("%d",&a);
    printf("Enter second number: ");
    scanf("%d",&b);
    printf("Enter Operator: ");
    scanf(" %c",&Op);
    switch(Op) {
    case'+':
        printf("Addition of two numbers: %d",add(a,b));
        break;
    case'-':
        printf("Subtraction of two numbers: %d",sub(a,b));
        break;
    case'*':
        printf("Multiplication of two numbers: %d",multi(a,b));
        break;
    case'/':
        if(b==0)
            printf("Division by zero not possible");
        else
            printf("Division of two numbers: %.3f",div(a,b));
        break;
    default:
        printf("Error!Enter correct operator");
    }

    return 0;
}

//Addition of two Matrices..
#include <stdio.h>
int main() {
    int row, column;
    printf("Enter the number of rows and columns: ");
    scanf("%d %d", &row, &column);

    if (row <= 0 || column <= 0) {
        printf("Error: Row and column values must be positive integers.\n");
        return 1;
    }

    int a[row][column], b[row][column];
    printf("\nEnter values for matrix A:\n");
    for (int r = 0; r < row; r++) {
        for (int c = 0; c < column; c++) {
            printf("Enter row %d and column %d: ", r, c);
            scanf("%d", &a[r][c]);
        }
    }

    printf("\nEnter values for matrix B:\n");
    for (int r = 0; r < row; r++) {
        for (int c = 0; c < column; c++) {
            printf("Enter row %d and column %d: ", r, c);
            scanf("%d", &b[r][c]);
        }
    }

    printf("\nMatrix A:\n");
    for (int r = 0; r < row; r++) {
        for (int c = 0; c < column; c++) {
            printf("%d  ", a[r][c]);
        }
        printf("\n");
    }

    printf("\nMatrix B:\n");
    for (int r = 0; r < row; r++) {
        for (int c = 0; c < column; c++) {
            printf("%d  ", b[r][c]);
        }
        printf("\n");
    }
    printf("\nSum of Matrix A and Matrix B:\n");
    for (int r = 0; r < row; r++) {
        for (int c = 0; c < column; c++) {
            printf("%d  ", a[r][c] + b[r][c]);
        }
        printf("\n");
    }

    return 0;
}

//Transpose of Matrix..
#include<stdio.h>
int main() {
    int row, column;
    printf("Enter row and column of Matrix:");
    scanf("%d %d",&row,&column);
      if (row <= 0 || column <= 0) {
           printf("Error!! Row and column values must be positive integers.\n");
           return 1;
           
    }
    int a[row][column];
    for(int r=0; r<row; r++) {
        for(int c=0; c<column; c++) {
            printf("Enter element A[%d%d] :",r,c);
            scanf("%d",&a[r][c]);
        }
    }
    printf("\nMatrix:\n");
    for(int r=0; r<row; r++) {
        for(int c=0; c<column; c++) {
            printf("%d  ",a[r][c]);
        }
        printf("\n");
    }

    printf("\nTranspose of Matrix:\n");
    for(int r=0; r<column; r++) {
        for(int c=0; c<row; c++) {
            printf("%d  ",a[c][r]);
        }
        printf("\n");
    }


    return 0;
}

//Fibonacci sequence and Factorial by using recursion..
#include <stdio.h>
int fibo(int a) {
if(a==0)
return 0;
else if(a==1||a==2)
return 1;
else return fibo(a-1)+fibo(a-2);
}
void printFiboSeries(int n, int f) {
if (f < n) {
printf("%d ",fibo(f));
printFiboSeries(n, f + 1);
}
}
int fact(int b) {
if(b==0)
return 1;
else
return (b*fact(b-1));
}
int main() {
int n,f;
printf("Enter the terms:");
scanf("%d",&n);
printf("Fibonacci sequence:");
printFiboSeries(n,0);
printf("\nFactorial of given number:%d",fact(n));
return 0;

}

//LCM and HCF
#include<stdio.h>
int main() {
int a, b, i, hcf=1,max;
printf("Enter first number:");
scanf("%d",&a);
printf("Enter second number:");
scanf("%d",&b);

for(i = 1; i <= a || i <= b; i++) {
if( a%i == 0 && b%i == 0 )
hcf = i;
}
max=(a>b)?a:b;
while(1) {
if(max%a==0 && max%b==0) {
break;
}
max++;
}
printf("LCM = %d\n",max);
printf("HCF = %d", hcf);


return 0;
}

C language for beginners : https://www.youtube.com/playlist?list=PLjEYzWkdEvxv5Byb-QnlQrjsuDuhpXX1G

Regular videos: continue with me till full c language

C language basics
https://youtu.be/aQU4litGb-c

Comments in c language and Plateforms to run c codes
https://youtu.be/UaN-OaDCx8Q?si=kz5tfAwQKQJpi7Aw

Keywords & Identifiers in c language

Begginer to advance c course

https://youtu.be/bI7vSS3Tf84

Keywords and datatypes in c language

https://youtu.be/AxF5NZpTcNE

Variables and constants in C language for absolute beginners

https://youtu.be/GPat5ENZytg?si=h9vm8GpHHfONEu24

How to run c code manually without and with vs code in any os

https://youtu.be/22kOt_PLpGs?si=kO2_xiFxFOREsmXo

Expressions and operators in c detailed

Topics covered:
00: 00 introduction to c operaters

02: 00 All c language operators in detail practically explained

02: 03 Airthmetic operators in c

03: 33 Relational operators in c

05: 07 Logical operators in c

06: 50 Assignment operators or shortcuts in c

09: 00 increment decrement operators in c

09: 41 sizeof and ternary operator in c

10: 59 comma operator in c

11: 44 bitwise operator, address of, pointer dereference, member access operators

12: 23 expressions in c language

https://youtu.be/qerhr7-a9TM?si=4v1uf0S6Nxep_pHA

Operator precedence in c video

With task

https://youtu.be/xTxK0e1io9A?si=-YkRq-CWh2Y4TWZX

Format specifiers in c programming language

With task
https://youtu.be/gLqmAF850Wo

( MCS-011 ) C language me backshlash character kya hote hain #Part11
https://youtu.be/PjET6HrGyok

Full Playlist: Click Here

#include <stdio.h>

int main() {
int num1, num2, sum;

printf("Enter first number: ");
scanf("%d", &num1);

printf("Enter second number: ");
scanf("%d", &num2);

sum = num1 + num2;

printf("Sum of %d and %d is %d\n", num1, num2, sum);

return 0;
}



/* * * * * * * * * * * * * * * * * * * *
How to take user input:
https://youtu.be/VbaKf9FwnDk

Video have a task
* * * * * * * * * * * * * * * * * * * */

// 1 to 100 numbers

#include <stdio.h>

int main() {
   
    for (int i = 1; i <= 10; i++) {
        for (int j = 0; j < 10; j++)
            if(i < 10)
                 printf("%d%d ", j, i);
             else
                 printf("%d ", (j + 1) * 10);
        printf("\n");
    }
   
    return 0;
}