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Multiplication

Multiplication. 568 423. Multiplication. Operation 1. multiply two digits, save the carry. 56 8 42 3 4. Carry: 2. Multiplication. Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry. 5 6 8 42 3

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Multiplication

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  1. Multiplication 568 423

  2. Multiplication Operation 1. multiply two digits, save the carry 568 423 4 Carry: 2

  3. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 568 423 04 Carry: 2

  4. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 3. multiply two digits, place result 568 423 1504 Carry:

  5. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 3. multiply two digits, place result 4. multiply a number by a digit 568 423 1504 Carry:

  6. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 3. multiply two digits, place result 4. multiply a number by a digit 568 423 1504 1136 Carry:

  7. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 3. multiply two digits, place result 4. multiply a number by a digit 5. shift a number 1 digit to the left 568 423 1504 1136 Carry:

  8. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 3. multiply two digits, place result 4. multiply a number by a digit 5. shift a number 1 digit to the left 6. add two numbers 568 423 1504 1136 12864 Carry:

  9. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 3. multiply two digits, place result 4. multiply a number by a digit 5. shift a number 1 digit to the left 6. add two numbers 568 423 1504 1136 12864 2272 Carry:

  10. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 3. multiply two digits, place result 4. multiply a number by a digit 5. shift a number k digits to the left 6. add two numbers 568 423 1504 1136 12864 2272 Carry:

  11. Multiplication Operation 1. multiply two digits, save the carry 2. multiply two digits, add the carry, save the carry 3. multiply two digits, place result 4. multiply a number by a digit 5. shift a number k digits to the left 6. add two numbers 568 423 1504 1136 12864 2272 240064 Carry:

  12. Multiplication What functions do we need: 1. addNum(n1, n2) – two integers as input, output is the sum 2. shilfLeft(n, k) – an integer n and a shift number k, output is n multiplied by 10 raised to power k 3. multiplyLine(n, d) – an integer n and a digit d as input, output is n times d.

  13. Multiplication function number = multiplyNum(n1, n2); number = []; k=0; % line multiply shifts k position for i=length(n2):-1:1 number = addNum(number, shiftLeft(multiplyLine(n1,n2(i)),k)); k = k+1; end end

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