MATLAB: How can I precise number in double

Question

Hello,

I want to ask you how I can precise the numbers after comma

for example:

x=0.2584

the result should be x=0.2

Please help me!

Answer 1

If the numbers are positive

x = 0.2584 
y = floor(x*10)/10

If both positive and negative 'x' are possible

y = sign(x)*floor(abs(x)*10)/10