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由 Tamás Tőkés 提交于
* Rewrite products of exponents as exponent of sum. Rewrite e^x*e^y to e^(x+y), e^x/e^y to e^(x-y). * Rewrite a^x * a^y to a^(x+y)
* Rewrite products of exponents as exponent of sum. Rewrite e^x*e^y to e^(x+y), e^x/e^y to e^(x-y). * Rewrite a^x * a^y to a^(x+y)