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Multiple representations of data

Multiple representations of data. Complex numbers. imaginary. 3 + 2 i. 2. 13. atan(2/3). real. 3. Complex numbers arithmetic. a + bi + (c + di) = a+c + (b+d)i r1e (i ?1) * r2e (i ?2) = (r1r2)e (i(?1+ ?2)). High level usage. ( define (add-complex z1 z2)

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