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"A row vector can be instanteated from a list of list. For instance, for \n",
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"$$\\myvec{v} = \\left[\\begin{array}{ccc}\n",
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" 1 & 2 \n",
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"\\end{array}\\right],\n",
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"$$ \n",
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"### Instantiating vectors",
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"A row vector can be instantiated from a list of lists. For instance, for ",
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"$$\\myvec{v} = \\left[\\begin{array}{ccc}",
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" 1 & 2 ",
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"\\end{array}\\right],",
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"$$ ",
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"we have"
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]
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},
@@ -504,11 +504,11 @@
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"A column vector can be instanted from a list of singleton *lists*. For instance, for \n",
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"$$\\myvec{u} = \\left[\\begin{array}{ccc}\n",
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" 1 \\\\\n",
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" 2\n",
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"\\end{array}\\right],$$ \n",
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"A column vector can be instantiated from a list of singleton *lists*. For instance, for ",
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"$$\\myvec{u} = \\left[\\begin{array}{ccc}",
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" 1 \\\\",
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" 2",
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"\\end{array}\\right],$$ ",
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"we have"
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]
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},
@@ -886,18 +886,18 @@
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Diagonal matrices\n",
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"\n",
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"Diagonal matrices get increasingly sparse with size, so it is important to have shorthanded commands for creating them. For instance, suppose that we have the following diagonal matrix\n",
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"\n",
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"$$\\mymatrix{D} = \\left[\\begin{array}{ccc}\n",
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" 1 & 0 & 0 \\\\\n",
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" 0 & 2 & 0 \\\\\n",
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" 0 & 0 & 3 \n",
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"\\end{array}\\right] ,\n",
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"$$\n",
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"\n",
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"this can be instanteated in `numpy` with"
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"### Diagonal matrices",
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"",
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"Diagonal matrices get increasingly sparse with size, so it is important to have shorthand commands for creating them. For instance, suppose that we have the following diagonal matrix",
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"",
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"$$\\mymatrix{D} = \\left[\\begin{array}{ccc}",
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" 1 & 0 & 0 \\\\",
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" 0 & 2 & 0 \\\\",
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" 0 & 0 & 3 ",
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"\\end{array}\\right] ,",
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"$$",
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"",
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"this can be instantiated in `numpy` with"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Identity matrix\n",
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"\n",
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"Among frequently used diagonal matrices, the identity matrix appears frequently. For instance, \n",
Copy file name to clipboardExpand all lines: basic_lessons/lesson2_exercise_answers.ipynb
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{
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"metadata": {},
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"cell_type": "markdown",
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"source": "`H_c` is *not* the same as `H_d`. This indicates that the order of operations matter. That is, sequential pose transformations are not commutative."
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"source": [
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"`H_c` is *not* the same as `H_d`. This indicates that the order of operations matters. That is, sequential pose transformations are not commutative."
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