# adriana resendez

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Question

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))); ...

8 years ago | 1 answer | 0

### 1

answerQuestion

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...

8 years ago | 1 answer | 0

### 1

answerQuestion

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

8 years ago | 1 answer | 0

### 1

answerQuestion

how would i find a postive root

func = @(x) tanh(2*x)/(2*x) = 0.7

8 years ago | 1 answer | 0

### 1

answerQuestion

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...

8 years ago | 1 answer | 0

### 1

answerQuestion

how can we display our real roots or points

>> f = @(x) x^3-3*x-1; >> fplot(f, [-10 10]); grid on;

8 years ago | 1 answer | 0

### 1

answerQuestion

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...

8 years ago | 0 answers | 0

### 0

answersQuestion

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; ...

8 years ago | 0 answers | 0

### 0

answersQuestion

how would my didplay look if a valuse is betwwen 5 and 10

if x==[5 10] ??????

8 years ago | 1 answer | 0

### 1

answerQuestion

i dont quite understand the maclaurium series expansion coding

e(-x) @=.3

8 years ago | 1 answer | 0

### 1

answerQuestion

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...

8 years ago | 0 answers | 0

### 0

answersQuestion

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!)

8 years ago | 0 answers | 0

### 0

answersQuestion

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]

8 years ago | 1 answer | 0

### 1

answerQuestion

how do i input this in built in funtions

multiply and count elements

8 years ago | 2 answers | 0

### 2

answersQuestion

howwould you in put this in to math lab with functions

add all elements of vector x=[37294]

8 years ago | 2 answers | 0