Revision history [back]
 | 1 | initial version |
It is quite possible to get what you want with formal power series:
sage: R.<a,b> = PowerSeriesRing(ZZ); R
Multivariate Power Series Ring in a, b over Integer Ring
sage: exp(a+b)==exp(a)*exp(b)
True
sage: exp(a-b)==exp(a)/exp(b)
True
Read
- https://en.wikipedia.org/wiki/Formal_power_series
- http://sagemath.org/doc/reference/power_series/index.html
| | 2 | No.2 Revision |
It is quite possible to get what you want with formal power series:
sage: R.<a,b> = PowerSeriesRing(ZZ); PowerSeriesRing(QQ); R
Multivariate Power Series Ring in a, b over Integer Ring
Rational Field
sage: exp(a+b)==exp(a)*exp(b)
True
sage: exp(a-b)==exp(a)/exp(b)
True
Read
- https://en.wikipedia.org/wiki/Formal_power_series
- http://sagemath.org/doc/reference/power_series/index.html
