1 0 1 0 1 0 1 0 1 0 1
$begingroup$
Start with the digits:
$1 0 1 0 1 0 1 0 1 0 1$
You may then add (only!) these simple arithmetic operators:
$+ - times div$
You may also remove the space between no more than 3 adjacent digits, to make larger numbers:
$1 0 1$ can be concatenated to $101$, for example
$1 0 1 0 1$ cannot be concatenated to $require{enclose}enclose{horizontalstrike}{10101} $ (too many digits)
You must then insert one equal sign $ = $ between two numbers to form a valid and correct equation.
What is the fewest operators you can add to form a valid equation?
Unary negation $-1$ is allowed.
Unary plus $+1$ is not allowed.
Binary addition, subtraction, multiplication, and division are allowed.
No other operators are allowed.
No decimal points, and no rounding.
Leading zeroes on numbers are not allowed.
Base 10 only.
Order of operations:
What Perl uses. Basically, BO(DM)(AS):
• left to right
• multiplication and division done together in one pass
• addition and subtraction done together in a lower priority pass
You may add parentheses if required to reorder evaluation. Each pair counts as an operator.
no-computers formation-of-numbers arithmetic
$endgroup$
add a comment |
$begingroup$
Start with the digits:
$1 0 1 0 1 0 1 0 1 0 1$
You may then add (only!) these simple arithmetic operators:
$+ - times div$
You may also remove the space between no more than 3 adjacent digits, to make larger numbers:
$1 0 1$ can be concatenated to $101$, for example
$1 0 1 0 1$ cannot be concatenated to $require{enclose}enclose{horizontalstrike}{10101} $ (too many digits)
You must then insert one equal sign $ = $ between two numbers to form a valid and correct equation.
What is the fewest operators you can add to form a valid equation?
Unary negation $-1$ is allowed.
Unary plus $+1$ is not allowed.
Binary addition, subtraction, multiplication, and division are allowed.
No other operators are allowed.
No decimal points, and no rounding.
Leading zeroes on numbers are not allowed.
Base 10 only.
Order of operations:
What Perl uses. Basically, BO(DM)(AS):
• left to right
• multiplication and division done together in one pass
• addition and subtraction done together in a lower priority pass
You may add parentheses if required to reorder evaluation. Each pair counts as an operator.
no-computers formation-of-numbers arithmetic
$endgroup$
add a comment |
$begingroup$
Start with the digits:
$1 0 1 0 1 0 1 0 1 0 1$
You may then add (only!) these simple arithmetic operators:
$+ - times div$
You may also remove the space between no more than 3 adjacent digits, to make larger numbers:
$1 0 1$ can be concatenated to $101$, for example
$1 0 1 0 1$ cannot be concatenated to $require{enclose}enclose{horizontalstrike}{10101} $ (too many digits)
You must then insert one equal sign $ = $ between two numbers to form a valid and correct equation.
What is the fewest operators you can add to form a valid equation?
Unary negation $-1$ is allowed.
Unary plus $+1$ is not allowed.
Binary addition, subtraction, multiplication, and division are allowed.
No other operators are allowed.
No decimal points, and no rounding.
Leading zeroes on numbers are not allowed.
Base 10 only.
Order of operations:
What Perl uses. Basically, BO(DM)(AS):
• left to right
• multiplication and division done together in one pass
• addition and subtraction done together in a lower priority pass
You may add parentheses if required to reorder evaluation. Each pair counts as an operator.
no-computers formation-of-numbers arithmetic
$endgroup$
Start with the digits:
$1 0 1 0 1 0 1 0 1 0 1$
You may then add (only!) these simple arithmetic operators:
$+ - times div$
You may also remove the space between no more than 3 adjacent digits, to make larger numbers:
$1 0 1$ can be concatenated to $101$, for example
$1 0 1 0 1$ cannot be concatenated to $require{enclose}enclose{horizontalstrike}{10101} $ (too many digits)
You must then insert one equal sign $ = $ between two numbers to form a valid and correct equation.
What is the fewest operators you can add to form a valid equation?
Unary negation $-1$ is allowed.
Unary plus $+1$ is not allowed.
Binary addition, subtraction, multiplication, and division are allowed.
No other operators are allowed.
No decimal points, and no rounding.
Leading zeroes on numbers are not allowed.
Base 10 only.
Order of operations:
What Perl uses. Basically, BO(DM)(AS):
• left to right
• multiplication and division done together in one pass
• addition and subtraction done together in a lower priority pass
You may add parentheses if required to reorder evaluation. Each pair counts as an operator.
no-computers formation-of-numbers arithmetic
no-computers formation-of-numbers arithmetic
asked 5 mins ago
Rubio♦Rubio
28.9k565178
28.9k565178
add a comment |
add a comment |
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