Given 1/2 + 1/(2 + π), https://isc.carma.newcastle.edu.au/advancedCalc "really found nothing." ries took 4msec: Your target value: T = 0.694492264824171 mrob.com/ries . . . x-1/2 = 1/(2+pi) for x = T - 1.11022e-16 {78} --LHS-- --RHS-- -Total- max complexity: 44 38 82 dead-ends: 9401 11053 20454 Time: 0.004 expressions: 516 441 957 distinct: 444 347 791 Memory: 61136 B Total equations tested: 154068 (1.541e+05) But ISC knows scads more exotic constants and functions. --rwg Now my only problem is that .6944... is the difference between two quantities I thought were equal.