MathieuCharacteristicExponent

MathieuCharacteristicExponent[a, q] gives the characteristic exponent r for Mathieu functions with characteristic value a and parameter q.

Examples

MathieuCharacteristicExponent[1, 0.5]

Plot[MathieuCharacteristicExponent[a, 1], {a, 0, 10}]

Please visit the official Wolfram Language Reference for more details.