How to make perfect arc of a circle in HTML only using <path>?

Question

I have something to make and its not here in SL. I was about to use C, A, Q, S but it didnt work anyway. Hpw do I make a perfect curve (or at leats an arc) in HTML without using <circle> but <path>?

I tried making some but the results are like a parabolic shape.

The center can be 50 50. The curve starts at the origon, 0 0. Then ends at 0 100.

Answer 1

You should take a look at Bresenham's Circle Algorithm. It has been translated to most languages I know, and it's basically an algorithm to draw a circle using a pixel grid. With a bit of tweaking, I'm sure you can figure something out to only print one arc of it. Good Luck

Answer 2

Or you can use math
Radi=Pi/180
Function nx(oldx,angle,length)
nx=oldx+(sign(angle)×length)
Function ny(oldy,angle,length)
my=moldy+(cos(angle)×length)

Angle and Length either one cannot be 0
Ps you can also can make line by not changing. For example: use line or something simular.
Line xp,yp xp1,yp1
Need forecolor
More sample below
Length can be from 1 to as big as want it. The larger the number is bigger the circle or arc
Inialize your circle Or arc.
First start your x y angle point
Make loop or some data for the angle.
If want dots or dots with different color for each angle.
x=nx:y=ny
Pixel(x,y)
oldx=x:oldy=y
Make a circle with line
First initialize the xp1=nx xp1=ny angle
Repeat the following until you get your ending angle
Start:
Line xp,yp xp1,yp1
Oldx=xp1:Oldy=yp1
Angle=Angle+1
Logic angle < entangle goto Start else Exit
Exit