MATLAB Numerical Methods and Optimization Flashcards
6 cards from real MATLAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 MATLAB Numerical Methods and Optimization flashcards as text
Which MATLAB function solves a system of linear equations Ax = b?
Answer: linsolve(A, b) or A\b
MATLAB solves linear systems using the backslash operator A\b or the linsolve function.
What does the MATLAB function `fzero` do?
Answer: Finds a root of a nonlinear scalar function
fzero finds a zero (root) of a scalar nonlinear function near a specified starting point.
Which function in MATLAB computes numerical integration using adaptive quadrature?
Answer: integral
The integral function uses adaptive Gauss-Kronrod quadrature to numerically integrate a function over a specified interval.
What does the `ode45` function use to solve differential equations?
Answer: Runge-Kutta 4th/5th order method
ode45 implements a variable-step Runge-Kutta method of orders 4 and 5 for solving ODEs.
Which MATLAB function finds the minimum of an unconstrained multivariable function?
Answer: fminsearch
fminsearch uses the Nelder-Mead simplex algorithm to minimize a multivariable function without constraints.
What does the `polyfit(x, y, n)` function return in MATLAB?
Answer: Coefficients of a polynomial of degree n fitted to data
polyfit returns a row vector of n+1 coefficients representing the least-squares polynomial fit of degree n to the data.