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Focal Distance in Cartesian Coordinates
For a point $$(x,y)$$ on:
$$y^2=4ax$$
its distance from the focus $$(a,0)$$ is:
$$SP=x+a$$
Usage
- Used to simplify focal-distance calculations without using the distance formula.
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Focal Distance in Cartesian Coordinates
For a point $$(x,y)$$ on:
$$y^2=4ax$$
its distance from the focus $$(a,0)$$ is:
$$SP=x+a$$
Usage
- Used to simplify focal-distance calculations without using the distance formula.
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