# mathematical constants related to statistics

@irrational twoπ 2 * big(π)
@irrational fourπ 4 * big(π)
@irrational halfπ big(π) / 2
@irrational quartπ big(π) / 4

@irrational invπ inv(big(π))
@irrational twoinvπ 2 / big(π)
@irrational fourinvπ 4 / big(π)
@irrational inv2π inv(2 * big(π))
@irrational inv4π inv(4 * big(π))

@irrational sqrt2 sqrt(big(2))
@irrational sqrt3 sqrt(big(3))
@irrational sqrtπ sqrt(big(π))
@irrational sqrt2π sqrt(2 * big(π))
@irrational sqrt4π sqrt(4 * big(π))
@irrational sqrthalfπ sqrt(big(π) / 2)

@irrational invsqrt2 inv(sqrt(big(2)))
@irrational invsqrtπ inv(sqrt(big(π)))
@irrational invsqrt2π inv(sqrt(2 * big(π)))

@irrational loghalf log(inv(big(2)))
@irrational logtwo log2
@irrational logten log(big(10))
@irrational logπ log(big(π))
@irrational log2π log(2 * big(π))
@irrational log4π log(4 * big(π))
