Difference between revisions of "Manuals/calci/POINTAT"

Revision as of 18:00, 22 August 2017

POINTAT (degrees,radius,cx,cy)

This function used to find the points on the circle using radius of the circle and degree value.
In $POINTAT(degrees,radius,cx,cy)$ , $degrees$ is any degree value.
$Radius$ is the radius of the circle.
Consider a circle centered at the origin with radius r, and marking the point on the circle indicated by some angle θ.
For the point (x, y) on a circle of radius r at an angle of $\theta$ ,the the function $SIN(\theta )$ = ${\frac {y}{r}}$ and $COS(\theta )$ = ${\frac {x}{r}}$ .
Using this function we can find the coordinates of the point on the circle is $x=rCos(\theta )$ and $y=rSin(\theta )$ .
On a unit circle, a circle with radius 1, $x=Cos(\theta )$ and $y=Sin(\theta )$ .

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 *<math>Radius</math> is the radius of the circle.
 *Consider a circle centered at the origin with radius r, and marking the point on the circle indicated by some angle  θ.
-*For the point (x, y) on a circle of radius r at an angle of <math>\theta</math>,the the function <math>SIN (\theta)</math>= <math>\frac{y}{r}</math> and <math>COS(\theta)</math>=<math>\frac{x}{r}.
+*For the point (x, y) on a circle of radius r at an angle of <math>\theta</math>,the the function <math>SIN (\theta)</math>= <math>\frac{y}{r}</math> and <math>COS(\theta)</math>=<math>\frac{x}{r}</math>.
 *Using this function we can find the coordinates of the point  on the circle is <math>x= rCos(\theta)</math> and <math>y= rSin(\theta)</math>.
 *On a unit circle, a circle with radius 1,<math>x=Cos(\theta)</math>  and  <math>y=Sin(\theta)</math>.