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Tony Yu


Last seen: 4 months ago
12 total contributions since 2020

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Question


Solving symbolic trig equation in terms of theta, using "sol."
What does "sol.th1" means ? why there are two sets of th1? syms th1 th2 px py eq1 = px == cos(th1+th2)+cos(th1) eq2 = py =...

4 months ago | 1 answer | 0

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Explaination on solving trigonmetric equations for theta.
I have these two equation and I am trying to solve for theta 1 and theta 2, can someone explain why there are 2 solution for eac...

4 months ago | 1 answer | 0

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using Matlabfunction for determinant, not enough input arguments
I think there should only be L, th2, th3 and th5 in J_home, am I missing something? I am trying to solve the determinant of J_ho...

5 months ago | 1 answer | 0

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Solving symbolic trig equation
Trying to see how I can solve this equations: clc clear all syms x y z eq1= -sin(x+y)+cos(x+y-1.6)== 0 eq2= cos(x+y)+cos(x+...

5 months ago | 1 answer | 0

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Rounding symbolic 4x4 matrix
Is there a way to round up the solution of T_06 to the nearest integer? H=[0 0 1 -320; 0 -1 0 30; 1 0 0 -320; 0...

5 months ago | 1 answer | 0

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Empty sym: 0-by-1
What does it mean and why am I geting this? is there anyway to fix it? %inverse kinematic given:[−320,30,−320] with respected t...

5 months ago | 1 answer | 0

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need help on nomenclature, Simplify symbolic variables
Looking for idea to simplify, A06 as well as J06.. any thougths? syms th th1 th2 th3 th4 th5 th6 alpha1 alpha2 alpha3 alpha4 a...

5 months ago | 1 answer | 0

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How to show numeric solution instead of symbolic solution
Is there a way to make q_dot to show numeric solutions? syms th1 th2 th3 th4 th5 th6 d1 d2 d3 d4 d5 d6 alpha1 alpha2 alpha3 alp...

5 months ago | 1 answer | 0

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Question


for loop with syms variable
I am trying to make a loop such that will generate c1=cos(th1) c2=cos(th2).....etc, how can I fix this? syms th th1 th2 th3 th4...

5 months ago | 1 answer | 0

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Question


Error using atan2 Inputs must be real.
Error using atan2 Inputs must be real. how can i fix this? clc; clear all; a1 = 150; alpha1 = pi/2; d1 = 470; a2 = 600; al...

6 months ago | 1 answer | 0

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Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.
is it because of the sin and cos? how do i solve this? clc; clear all; a1 = 150; alpha1 = pi/2; d1 = 470; a2 = 600; alpha2 =...

6 months ago | 1 answer | 0

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Question


Why is my plot not showing?
a1 = 0; alpha1 = 0; d1 = 0; a2 = 475; alpha2 = pi/2; d2 = 150; a3 = 600; alpha3 = 0; d3 = 0; %DH parameter t1_min = -pi/2; t...

6 months ago | 1 answer | 0

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