The exp2pow command is the inverse of pow2exp (see Section 6.24.7).
Example.
Input:
Output:
| xn |
Note the difference with lncollect:
| lncollect(exp(n*ln(x))) = exp(n*log(x)) |
| lncollect(exp(2*ln(x))) = exp(2*log(x)) |
| exp2pow(exp(2*ln(x))) = x^2 |
but
| lncollect(exp(ln(x)+ln(x))) = x^2 |
| exp2pow(exp(ln(x)+ln(x))) = x^(1+1) |