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To Change a decimal number into a binary number

step 1. Input your decimal number in the first input form. ( ex. 45 )
step 2. Then click the first button. then you can see a binary number.
step 3. click the CLEAR button
step 4. Input your binary number in the second input form. ( ex. 10011 )
step 5. click the third button named DECIMAL
Decimal number
Binary number