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embeddings:: fixed map over itself in spherical product embedding
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@ -591,7 +591,7 @@ struct emb_euc_in_product : emb_euclid_noniso {
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ld bz = zlevel(a);
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auto h1 = a / exp(bz);
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ld by = asin_auto(h1[1]);
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ld bx = atan_auto(h1[0] / h1[2]);
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ld bx = atan2_auto(h1[0], h1[2]);
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return hyperpoint(bx, by, bz, 1);
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}
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transmatrix get_lsti() override { return cspin90(2, 1); }
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