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POINT OF INTERSECTION
OF TWO STRAIGHT LINES
This program obtains the point of intersection
of two straight lines on an
x-y
coordinate plane.
Simple as it is, this program can also be used to
solve simultaneous equations in two variables.
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1
l ■
~=O.Xtb
~=crx+o
X
When the program is started, it asks for the two equations to be solved. Thus,
y
=ax+
b
y
=
a'x +
b'
Input a, b, a', and b', in that order. The program immediately displays the coordinates
of the intersection point of the two straight lines. Thus,
Coordinates of intersection point
(x,
y)
x=
y=
If the two straight lines are parallel to each other, the program displays the message
"NO INTERSECTION POINT."
If the two straight lines coincide with each other, the program displays "y
=ax+
b",
because either of the lines represents the set of intersection points.
Pressing the BREAK key terminates the program execution. To obtain the intersection
point of another pair of straight lines, press any other key on the keyboard.
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