what is wrong with my script

clear all

for loop_index = 1:2
    

x = input('Input number to convert');
units = input('Input the units to convert from')

if units == mm
    cm = x/10
    m = x/1000
    inch = x/25.4
    km = x/1000000

end  
    
if units == cm
        mm = x*10
        m = x/100
        inch = x/2.54
        km = x/100000
end

if units == m
    mm = x*1000
    cm = x*100
    inch = x*39.37
    km = x/1000

end

end

Answer 1

[Stephan]

clear all
for loop_index = 1:2
    
x = input('Input number to convert');
units = input('Input the units to convert from','s')
if units == 'mm'
    cm = x/10
    m = x/1000
    inch = x/25.4
    km = x/1000000
end  
    
if units == 'cm'
        mm = x*10
        m = x/100
        inch = x/2.54
        km = x/100000
end
if units == 'm'
    mm = x*1000
    cm = x*100
    inch = x*39.37
    km = x/1000
end
end

[Jordan Birley]

%But i want it to only display the selected units answers. how do i do more than on else statments for the same if

clear all

for loop_index = 1:2

x = input('Input number to convert');

units = input('Input the units to convert from','s')

if units == 'mm'

cm = x/10

m = x/1000

inch = x/25.4

km = x/1000000

else units == 'cm'

mm = x*10

m = x/100

inch = x/2.54

km = x/100000

else units == 'm'

mm = x*1000

cm = x*100

inch = x*39.37

km = x/1000

end

end

[Stephan]

clear all
for loop_index = 1:2
    
x = input('Input number to convert:\n');
units = string(input('Input the units to convert from:\n','s'))
if units == "mm"
    cm = x/10
    m = x/1000
    inch = x/25.4
    km = x/1000000
elseif units == "cm"
        mm = x*10
        m = x/100
        inch = x/2.54
        km = x/100000
elseif units == "m"
    mm = x*1000
    cm = x*100
    inch = x*39.37
    km = x/1000
else
    disp('Please choose a correct unit to convert from.')
end
end

[merina amon]

may i get some help on my script too, especially the equation part i keep getting error

M1=53 ; %mass

M2=62.096; %mass

k=3096000; % stiffness

f= 1277;%exciting force

w1= 241.6921;

w2= 223.2897;

for i = 1: 101

w=0:50:100;

x1= (2-((w/w2).^2))*f ./ ( (3-((w/w1).^2))*(2-((w/w2).^2))-(4*(k.^2)) );

x2 = (4*k*f)./( (3-((w/w1).^2)) * (2-((w/w2).^2))-(4*k.^2));

end

[merina amon]

here is the full script

M1=53 ; %mass

M2=62.096; %mass

k=3096000; % stiffness

f= 1277;%exciting force

w1= 241.6921;

w2= 223.2897;

for i = 1: 101

w=0:50:100;

x1= (2-((w/w2).^2))*f ./ ( (3-((w/w1).^2))*(2-((w/w2).^2))-(4*(k.^2)) );

x2 = (4*k*f)./( (3-((w/w1).^2)) * (2-((w/w2).^2))-(4*k.^2));

end

subplot (211);

plot (w, x1);

xlabel ('w')

ylabel ('X_1');

axis([0 8 -5 5]);

grid on;

subplot (212);

plot (w, x2);

title('Frequency Response of a harmonically two degree of freedom system')

xlabel ('w');

ylabel ('X_2');

axis([0 8 -5 5]);

grid on

[Steven Lord]

merina amon, your question doesn't seem to be related to the original question. Please post it as a new question. When you do be sure to include the full and exact text of the error message you received.