puts terms in a sum over a common denominator, and cancels factors in the result.
- Together makes a sum of terms into a single rational function.
- The denominator of the result of Together is typically the lowest common multiple of the denominators of each of the terms in the sum.
- Together avoids expanding out denominators unless it is necessary.
- Together is effectively the inverse of Apart.
- Together[expr, Modulus->p] generates a result modulo p.
- Together[expr, Extension->Automatic] allows operations to be performed on algebraic numbers in expr.
- Together[expr, Trig->True] treats trigonometric functions as rational functions of exponentials, and manipulates them accordingly.
- Together automatically threads over lists, as well as equations, inequalities and logic functions.
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