Module fixed_math::sqrt

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Expand description

Square root functions for fixed numbers.

  • sqrt_u : for unsigned numbers with 1 < integer bits
  • sqrt_u0 : for unsigned numbers with 0 integer bits
  • sqrt_u1 : for unsigned numbers with 1 integer bit
  • sqrt_i : for signed numbers with 1 < integer bits
  • sqrt_i1 : for signed numbers with 1 integer bit
  • sqrt_i0 : Does not exist, because sqrt of number can not be represented.

Square root is not implemented for fixed numbers with 0 integer bits as it would almost always overflow.

License

Our sqrt function is a modified version of cordic’s.

Functions

  • sqrt_i
    Take square root of signed fixed number.
  • sqrt_i1
    Calculate square root of signed fixed number that has 1 integer bit.
  • sqrt_u
    Calculate square root of unsigned fixed number.
  • sqrt_u0
    Calculate square root of unsigned fixed number without integer bits.
  • sqrt_u1
    Calculate square root of unsigned fixed number that has 1 integer bits.