Sayem's Blog

  By Gauss-Jordan method ,show that following system has no soloution. x+2y-3z=-13,x-y+2z=7,x+3y-4z=2 A={{1,2,-3,-1},{3,-1 ,2,7},{5,3,-4,2}}//MatrixForm RowReduce[{{1,2,-3,-1},{3,-1 ,2,7},{5,3,-4,2}}]//MatrixForm From the equation, we can write,1x+1/7z=0,1y-11/7z=0,0=1; So,we can say that This equation has no solution.  Thank You😊

 Today I will write about Math Lab.Math Lab is very important in mathematics.Today's blog will show the experiments of Matrix.So let's get started Matrix: Suppose (1,2) and (3,4) are the two components of the matrix. Then the matrix structure will be:       A={{1,2},{3,4}}//MatrixForm    TagBox[RowBox[{"(", "\:2060", GridBox[{{ItemBox["1"], ItemBox["2"]}, {ItemBox["3"], ItemBox["4"]}}, RowSpacings -> 1, ColumnSpacings -> 1, RowAlignments -> Baseline, ColumnAlignments -> Center], "\:2060", ")"}], Function[BoxForm`e$, MatrixForm[BoxForm`e$]]] Again the transpose matrix will be - Trans=Transpose[{{1,2},{3,4}}]//MatrixForm TagBox[RowBox[{"(", "\:2060", GridBox[{{ItemBox["1"], ItemBox["3"]}, {ItemBox["2"], ItemBox["4"]}}, RowSpacings -> 1, ColumnSpacings -> 1, RowAlignments -> Baseline, ColumnAlignments -> Center]...

  Symbol Symbol Name Meaning / definition = equals sign equality ≠ not equal sign inequality ≈ approximately equal approximation > strict inequality greater than < strict inequality less than ≥ inequality greater than or equal to ≤ inequality less than or equal to ( ) parentheses calculate expression inside first [ ] brackets calculate expression inside first + plus sign addition − minus sign subtraction ± plus - minus both plus and minus operations ± minus - plus both minus and plus operations * asterisk multiplication × times sign multiplication ⋅ multiplication dot multiplication ÷ division sign / obelus division / division slash division — horizontal line division / fraction mod modulo remainder calculation . period decimal point, decimal separator a b power exponent a^b caret exponent √ a square root √ a  ⋅  √ a   = a 3 √ a cube root 3 √ a  ⋅  3 √ a   ⋅  3 √ a   = a 4 √ a fourth root 4 √ a  ⋅  4 √ a  ...

AHM Mostafa Kamal, Finance Minister of Democratic Bangladesh has presented a budget of Tk 5 lakh 68 thousand crore for the fiscal year 2020-21. This is the 50th budget of democratic   Bangladesh.The budget was raised in Parliament on June 10 this year.This time the slogan of the budget was "Economic transition and future path".Below are the details of the budget. 1. This year's budget was 110 pages. 2.  The amount of GDP in the budget is 19.9. 3. The cost of the Annual Development Program (ADP) has been estimated at Tk 2 lakh 5 thousand 145 crore. 4. The National Board of Revenue (NBR) will have to collect tax revenue of Tk 3 lakh 30 thousand crore to meet the expenditure of the next 2020-21 financial year. 5. In the budget, 7.2 per cent or Tk 29,000 crore has been given to the health sector. 6. Out of these 50 budgets, 22 budgets have been prepared by the Awami League government. 7. 10 thousand crore has been allocated to address the corona of the budget.