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adriana resendez


Active since 2015

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my xnew isno being displayed and how would i calculate coefficient of determination and the standard error of estimate?
v = 10:10:80; F = [25 70 380 550 610 830 1220 1450]; x = v(:); y = F(:); fssr = @(a) sum((y-a(1)*sinh(a(2)*x))); ...

9 years ago | 1 answer | 0

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Question


hwo would i find a root usiong fzero
>> f = @(x) 2-10*x*exp(-0.8*x); >> fplot(f,[0 10]) >> grid on function [xmin,fmin,ea,iter] = lab_19(f,xl...

9 years ago | 1 answer | 0

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Question


how would i type in my fraction in the polynomial to find my real and complex roots
fx = x^5-((x^4)/2)-2x^3-x^2-3 roots = fx

9 years ago | 1 answer | 0

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Question


how would i find a postive root
func = @(x) tanh(2*x)/(2*x) = 0.7

9 years ago | 1 answer | 0

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Question


how world i find the lowest root with bisection
function [xr ea iter] = bisect(func, x1, xu, es, maxit) % function [xr ea iter] = bisect(func, x1, xu, es, maxit) % bise...

9 years ago | 1 answer | 0

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Question


how can we display our real roots or points
>> f = @(x) x^3-3*x-1; >> fplot(f, [-10 10]); grid on;

9 years ago | 1 answer | 0

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Question


i know this is a false postion method code would the question mark be func(es) ?
function [xr ea iter] = falsepos(func, x1, xu, es, maxit) % function [xr ea iter] = falsepos(func, x1, xu, es, maxit) if...

9 years ago | 0 answers | 0

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Question


working on a bisection code and im pretty lost is it right so far?
function [xr ea iter] = bisect(func,x1, xu, es, maxit) if func(x1)*func(xu)>=0, error('no sign change'); end xold = x1; ...

9 years ago | 0 answers | 0

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Question


how would my didplay look if a valuse is betwwen 5 and 10
if x==[5 10] ??????

10 years ago | 1 answer | 0

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Question


i dont quite understand the maclaurium series expansion coding
e(-x) @=.3

10 years ago | 1 answer | 0

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Question


what is the center finite diffeance approximation and the backward finite
df_b(i)=(fx2-fx1)/h; df_b(i)=( ? )/h; %backward finite differance aprox df_b(i)=( ? )/(2*h); %cent...

10 years ago | 0 answers | 0

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Question


my professor says to modify but doesnt explain correctly what does he mean by that while coding somthing like this
e^-x =1-x+(x^2/2!)

10 years ago | 0 answers | 0

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Question


i need to plot this function and determine the exact valuse of the derrivative at x=1
F(x)= 2x^3-3x+4 for the interval [-2,2]

10 years ago | 1 answer | 0

1

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Question


how do i input this in built in funtions
multiply and count elements

10 years ago | 2 answers | 0

2

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Question


howwould you in put this in to math lab with functions
add all elements of vector x=[37294]

10 years ago | 2 answers | 0

2

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