the Bernoulli number to compute
Bernoulli number
var y = bernoulli( 0 );
// returns 1.0
var y = bernoulli( 1 );
// returns 0.0
var y = bernoulli( 2 );
// returns ~0.167
var y = bernoulli( 3 );
// returns 0.0
var y = bernoulli( 4 );
// returns ~-0.033
var y = bernoulli( 5 );
// returns 0.0
var y = bernoulli( 20 );
// returns ~-529.124
var y = bernoulli( 260 );
// returns -Infinity
var y = bernoulli( 262 );
// returns Infinity
var y = bernoulli( NaN );
// returns NaN
Computes the nth Bernoulli number.