Template:Bintodec

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This templates returns an integer of which the binary representation in reverse order forms the Boolean array indicating which of the parameters 1-7 are defined and non-empty.

Examples:

• {{bintodec}} → 0 [1]
• {{bintodec|5}} → 1 [2]
• {{bintodec|5|2}} gives 3 [3]
• {{bintodec|3=x|5=y}} gives 20
• {{bintodec|3=x|5=y|3=}} gives 16

Without special provisions this template can be extended to work for arrays of at most 46 elements:

{{#expr:2^46}} ⇒ 70368744177664

{{#expr:2^47}} ⇒ 1.4073748835533E+14

See also

• Template:Dectobin

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