cdn_goethals_Turyn {HadamardR}

cdn_goethals_Turyn

Description

Checks Hadamard Matrix can be constructed using available Turyn Type sequences.

Usage

cdn_goethals_Turyn(order)

Arguments

order

integer

Details

This function checks whether the Hadamard matrix of given order can be constructed using Turyn sequences. If Turyn sequences of (order+4)/12 is available then Hadamard matrix of order exists. Returns the value 8, if it is possible otherwise NULL is returned.

Turyn type-sequences are available for 28,30,34,36 in the internal table.

Value

8 or NULL

See Also

had_goethals_Turyn for Goethals-Seidel construction method using Turyn sequences.

Examples

cdn_goethals_Turyn(356)
#8
cdn_goethals_Turyn(40)
#NULL