. Differential and integral calculus. common tangent to the twobranches. But we have seenabove that one branch of thecurve crosses the ^--axis at theorigin (, the curve has beenshown to pass from the second tothe fourth angle through theorigin) ; hence the origin is also a point of inflexion. Such a point is called a point of oscul- inflexion. 4. f = 2 ax2 - Fig. Fig. 43- 5. y 4- x2y = x. Fig. 44- 6. xz — 2 x?y — 2 x2 — 8y = o.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcalculu, bookyear1918