logaddexp#
- rbc.stdlib.elementwise_functions.logaddexp(x1, x2)#
Calculates the logarithm of the sum of exponentiations
log(exp(x1) + exp(x2))for each element x1_i of the input array x1 with the respective element x2_i of the input array x2.Examples
>>> from rbc.stdlib import array_api >>> @heavydb('double(double, double)') ... def array_api_logaddexp(x1, x2): ... return array_api.logaddexp(x1, x2) >>> prob1 = np.log(1e-50) >>> prob2 = np.log(2.5e-50) >>> array_api_logaddexp(prob1, prob2).execute() -113.876495