HOW TO WRITE MAIN FUNCTION

Question

ASIM 2015-4-21

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/211777-how-to-write-main-function

评论： Star Strider 2015-4-21

Getting down to bussiness;

I have written "TWO separate" functons on matlab that calculates: 1) the area of triangle 2) the area of a parallelogram

But I want to create an M-function that will calculate the area of a triangle or a parallelogram by asking the user to make a choice between Triangle and Parallelogram and then compute the area by calling the right funtion.

%-------------AREA OF TRIANGLE FUNCTION--------------------------------------------------------%;

function [ points ] = coordinateS( x_1,y_1,x_2,y_2,x_3,y_3 )

*x_1=input('Enter the coordinates (x_1), :' ) *y_1=input('Enter the coordinates (y_1), :' )

*x_2=input('Enter the coordinates (x_2), :' ) *y_2=input('Enter the coordinates (y_2), :' )

*x_3=input('Enter the coordinates (x_3), :' ) *y_3=input('Enter the coordinates (y_3), :' )

*M = [x_1 y_1 1; x_2 y_2 1; x_3 y_3 1]

*% Calculate Area of Triangle (areaT) *Area = [(0.5)*abs(det(M))]

%-------------AREA OF PARALLELOGRAM FUNCTION-------------------------------------------%

function [ points ] = coordinateS( x_1,y_1,x_2,y_2,x_3,y_3,x_4,y_4 )

*x_1=input('Enter the coordinates (x_1), :' ) *y_1=input('Enter the coordinates (y_1), :' )

*x_2=input('Enter the coordinates (x_2), :' ) *y_2=input('Enter the coordinates (y_2), :' )

*x_3=input('Enter the coordinates (x_3), :' ) *y_3=input('Enter the coordinates (y_3), :' )

*x_4=input('Enter the coordinates (x_4), :' ) *y_4=input('Enter the coordinates (y_4), :' )

*M = [x_1 y_1 1; x_2 y_2 1; x_3 y_3 1]

*% Calculate Area of PARALLELOGRAM (areaP) *Area = [abs(det(M))]

%--------------------------------------------------------------------------------------------------------------%

How do i write another funtion that will take user input (from the keyboard). That will calculate the area of a triangle or a parallelogram by asking the user to make a choice between Triangle and Parallelogram and then compute the area by calling the right funtion.