which x value is making maximum this function.

Hi there i need help about for loop. I have a code that gives me max value of a function. But i need to see which x value is making maximum this function.

clear all

clc;

maxy1=-inf;

for x=0:0.1:0.4

y1=-0.893*x^2;

maxy1 = max(maxy1,abs(y1));

end

maxy1

output should be like maxy1=3.9 when x=0.3.

Answer 1

[Ive J]

x = 0:0.1:0.4;
y1 = -0.893.*x.^2;

[maxY1, maxIdx] = max(abs(y1));

x(maxIdx) % your answer is here

[Mukaddes Bolat]

it is giving me the max range value.