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| Thanks. I'm pretty sure I tried it at first and it didn't work!!! |
| thanks. Yes it works for this tailor-made example, But the issue is this one in fact Clear[aa,bb,r1,r2,r3]; aa= u+v+w;bb= 2 u-v-w; r4[u_,v_]=Which[aa>bb,AA,aa==bb,AB,aa>bb,AA,bb>aa,BB]; r4[2,1] yields to ... |