# geometrically

Adverb

(*comparative* more geometrically, *superlative* most geometrically)

- in a geometric manner
- concerning geometrics

Adverb

(*comparative* more geometrically, *superlative* most geometrically)

- in a geometric manner
- concerning geometrics

- If ai, bx, cx be different forms we obtain, after development of the squared determinant and conversion to the real form (employing single and double dashes to distinguish the real coefficients of bx and cz), a(b'c"+b"c'-2 f'f") +b(c'a"+c"a'-2g'g") +c(a' +a"b'-2h'h")+2f(g'h"+g"h'-a' + 2g (h ' f"+h"f'-b'g"-b"g')+2h(f'g"+f"g'-c'h"-c"h'); a simultaneous invariant of the three forms, and now suppressing the dashes we obtain 6 (abc+2fgh -af t - bg 2 -ch2), the expression in brackets being the S well-known invariant of az, the vanishing of which expresses the condition that the form may break up into two linear factors, or,
**geometrically**, that the conic may represent two right lines. - There is no linear covariant, since it is impossible to form a symbolic product which will contain x once and at the same time appertain to a quadratic. (v.) is the Jacobian;
**geometrically**it denotes the bisectors of the angles between the lines ax, or, as we may say, the common harmonic conjugates of the lines and the lines x x . - He solved quadratic equations both
**geometrically**and algebraically, and also equations of the form x 2 "+ax n +b=o; he also proved certain relations between the sum of the first n natural numbers, and the sums of their squares and cubes. - Cubic equations were solved
**geometrically**by determining the intersections of conic sections. - The method of solving equations
**geometrically**was considerably developed by Omar Khayyam of Khorassan, who flourished in the 1 r th century.

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