Solve an equation, for a variable, with prompts?

Question

Kyle Langford 2021-4-4

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/792377-solve-an-equation-for-a-variable-with-prompts

回答： darova 2021-4-6

I am new to matlab. I am just trying to have some fun building my own equations with prompts. I was trying to write a code for a simple kinematic equation, like x=x_0+v_0*t

I tried this, and it works:

syms x x_0 v_0 t
equation = x==x_0+v_0*t
x_0=0;
v_0=5;
t=10;
equation = x==x_0+v_0*t
S=solve(equation,x,"IgnoreProperties",true)

I did some searching on here for prompting, and found a funny version. So I tried this which was fun:

while true
    x = input('How about sending an x value over this way?');
    if isscalar(x) && isnumeric(x); break; end
end
while true
    y = input('Groovy. Got a spare y value too?');
    if isscalar(y) && isnumeric(y); break; end
end
disp(x*y)

My question is, how could I set up this kinematic equation, and prompt for the variable I want to solve for?

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Answer 1

darova 2021-4-6

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/792377-solve-an-equation-for-a-variable-with-prompts#answer_668447

在 MATLAB Online 中打开

What about this?

function main
a = myprompt('Please enter a:');
b = myprompt('the same way b:');
function y = myprompt(s)
    while true
        y = input(s);
        if isscalar(y) && isnumeric(y); break; end
    end
end
end