Let us start by setting the terminology right: To locate a point on a plane you need two coordinates ( an X-value and a Y-value). If the point is in space, you need a third coordinate which may be called z, but let's us not complicate things unecessarily.
With just two coordinates, we will be able to locate at best one point.
Let us rephrase the problem: When given two sets of coordinates, how to calculate the distance between the two points.
Let (x1,y1) and (x2,y2) be the coordinates of two points in a plane. To calculate the distance between the points, one uses the formula
d (distance)= square root of ( (x2-x1)^2+(y2-y1)^2)
When you calculate the distance you must substitute actual coordinates for X1, Y1, X2 and Y2.
As regards the bearing, I am afraid that I am no expert in maritime nor in aircraft navigation and I will not venture stray out of my area of competence. However, I know that you need an axis that defines the direction with respect to which angles are measured.
If your reference axis is the horizontal axis on a cartesian plane you can determine the angle that the line joining the points makes with that horizontal axis by calculating its cosine, then extract the arcosine.
If (X2-X1) and (Y2-Y1) are both positive then cos(theta)=(X2-X1)/d, where d is the distance (positive value) calculated above.
Why is it an inappropriate answer? Given two sets of coordinates for two points in a plane, I showed you how to calculate the distance between them. All it requires is to use the square function x^2 and the square root function. These are easily available on most scientific calculators and yours has them too. Thus you should be able to calculate the distance given the coordinates of the point. That is HALF YOUR ANSWER. The formula I gave you is clear.
As to your bearing, since you use this specialized shop term, you should know that there are may definitions, each depending on the context. Read this Wikipedia article to help you orient yourself in the maze.
In mathematics, you use the trigonometric circle and measure angles with RESPECT to the horizontal axis (the X-Axis). I gave you the formula to calculate the cosine of the angle between the line joining the two points and the X-axis of a Cartesian plane.
Enough time wasted. Give (X1,Y1), and (X2,Y2) and I will show you how to calculate the angle in a trigonometric context.
Here is an online calculator to use to calculate the distance and directions for two points on the Earth surface. For each point you need two coordinates (latitude and longitude).
Sorry I forgot the link
The steps to calculate the distance are in the picture inserted. You do not want to make things easy for me. I asked you to give the coordinates. You do have some sample coordinates, don't you?
To do calculations you turn calculator ON, use arrows to highlight the RUN icon and press [EXE]. An empty screen opens, where you perform the general calculations.
Ex: Let P1(1,2) and P2(5,8)
To calculate the distance between P1 and P2
In what follows physical keys are enclosed in square brackets [key]
While this answer is still stored in answer memory, it is accessible by pressing [SHIFT][(-)], the key at the bottom between [EXP] and [EXE].Press [SHIFT] then [X^2], the key just below [OPTN] and to the right of [ALPHA]. This key sequence gives access to the square root function
Press [ ( ], to enclose the content of the square root in parentheses. This must have a counterpart [ ) ] at the end
Type [(] 5-1 [) [X^2] : to calculate (X2-X1)^2
Type [+]
Type [ ( ] 8-2 [) [X^2: to calculate (Y2-Y1)^2
Type [)] to close the right parenthesis as warned in #2 above
Press [EXE] to perform the calculation
The result for the distance is 7.211102551 (second line on screen capture)
The cosine of the angle is calculated with the key sequence
[(] (5-1 [ )] [/] [SHIFT][ (-)] [EXE]
The result is on the screen capture (4th line)
Now before you calculate the angle you should make sure the angle unit in calculator is the degree. It should have done before.
In Run mode press [SHIFT][MENU] to access (SETUP). Use down key to highlight [ANGLE] and select [F1:Degree].
If you want radian then set radian. The important thing to remember is the default angle unit, because the result returned by the arc cosine is expressed in that unit.
If you have not done any side calculation, the cosine result is still stored in answer memory and accessible by the sequence [SHIFT][(-)].
To get the angle in degrees from the cosine in answer memory
[SHIFT][COS] [SHIFT][(-)] [EXE]
If you calculator supplies a left parenthesis when you press [SHIFT][COS] you must supply the closing right parenthesis before pressing the [EXE] key.
The result is 56.30993247 or 56.31 degrees.
Here you are.
A few remarks. If you do not know how to use the calculator just come clean with it so that the person who tries to help you knows where to start.
If you do not understand what is being said, ask for clarifications.
Rating the solution (as you did: shoot first and don't ask questions) is the last resort, if you despair to obtain an answer.
Do rate the solution and show your appreciation for the good Samaritan who tried to help you.
×
589 views
Usually answered in minutes!
yes thats all very well buut WHAT ARE THE STEPS ON A casio fx-7400G plus scientific calculator?
×