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Dwyane Wade


2011 年からアクティブ

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getting the "n" in quadratic regression
How do you get the *n* manually from the quadratic regression formula: y=ax^2+b+c (Σx^2)a + (Σx)b + *n* c = Σy (Σx^3)a + (Σx...

13年以上 前 | 0 件の回答 | 0

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Parabolic regression problem
how do you find a b and c in parabolic regression? like in this expression: y= -0.20x^2 + 1.94x + 2.78, how do you get 0.20 1.94...

13年以上 前 | 1 件の回答 | 0

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質問


matrix question
Q = 10 20 30 40 50 60 70 8 9 10 11 12 13 14 33 30 27 24 21 ...

13年以上 前 | 1 件の回答 | 0

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質問


function of roots
I have another problem it says: give the function whose roots are 4, -3, -2, 1/5 and 0. should I use poly(x) or roots(x)? ...

13年以上 前 | 1 件の回答 | 0

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質問


getting a matrix out of a matrix
Hi there guys I have a question. How do you get an output out of a matrix? for example here is the matrix: Q = 10 20 ...

13年以上 前 | 1 件の回答 | 0

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質問


solutions of equations
how do I find solution for the following problems? (this topic is under solutions of equations.) 1. e^4x-3e^2x=-2 2. tan^-...

13年以上 前 | 1 件の回答 | 0

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質問


symbolic processing
Hi there I have a problem and it is under Symbolic Processing topic. How do I evaluate these expressions in terms of x? 1....

13年以上 前 | 1 件の回答 | 0

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質問


using polyval(a,x)
Hi guys please help me I cant seem to figure out how to use polyval(a,x), I need to use it to solve the following problem: 1....

13年以上 前 | 2 件の回答 | 0

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質問


Evaluating an expression in terms of x:
How do I evaluate these expressions in terms of x? 1.) tan(2x-45degrees) 2.) sin(30degrees-3x) also, how do I put the s...

13年以上 前 | 2 件の回答 | 0

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質問


how do you use sin in matlab?
like for example I will input sin 30 when I do this I get an error: ??? Undefined function or variable 'sin30'. sin is a ...

13年以上 前 | 2 件の回答 | 1

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質問


sym and syms
what is the use of sym and syms and what are their differences?

13年以上 前 | 2 件の回答 | 0

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回答済み
finding an output from a matrix using a single syntax
Im not sure what the logic is, all I know is that we are required to find R = [33 9 30 74 -4 72 63 15] using a single syntax lik...

13年以上 前 | 0

質問


finding an output from a matrix using a single syntax
Hi there guys I have a question. How do you get a single line output out of a matrix? for example here is the matrix: Q = ...

13年以上 前 | 4 件の回答 | 0

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