IInk SDK Web REST Math recognition examples
Writing a formula
Considering this request body.
The strokes in the strokeGroups of this request correpond to that writing:
If you ask for application/x-latex output, you will obtain the following result :
\int ^{b}_{a}f'\left( x\right) dx=f\left( b\right) -f\left( a\right).
You can then use this output to insert the formula in your documents:
If your need is to analyze the components of the formula, you can also ask for application/vnd.myscript.jiix or application/mathml+xml.
Solving an equation
Considering this request body.
The strokes in the strokeGroups of this request correpond to that writing:
If you ask for application/x-latex output, you will obtain the following result :
\pi \times 25^{2}=.
Which is Latex for:
When you ask for application/vnd.myscript.jiix, you can see that a node solving the equation is flagged as generated:
{
"type": "Math",
"expressions": [ {
"type": "≃",
"id": "math/108",
"value": 1963.4954,
"items": [ {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.939696",
"label": "≃",
"bounding-box": {
"x": 69.656494,
"y": 54.63583,
"width": 8.1594315,
"height": 5.4090652
},
"id": "0000170001000700ff00"
} ],
"bounding-box": {
"x": 68.656494,
"y": 53.63583,
"width": 10.159431,
"height": 7.4090652
},
"operands": [ {
"type": "×",
"id": "math/73",
"value": 1963.4954,
"items": [ {
"type": "glyph",
"timestamp": "1970-01-01 00:00:52.903000",
"label": "×",
"bounding-box": {
"x": 37.101265,
"y": 53.466923,
"width": 7.6781197,
"height": 7.6781197
},
"id": "00000b0001000700ff00"
} ],
"bounding-box": {
"x": 36.101265,
"y": 52.466923,
"width": 9.6781197,
"height": 9.6781197
},
"operands": [ {
"type": "number",
"id": "math/78",
"label": "Ï€",
"value": 3.1415927,
"items": [ {
"type": "glyph",
"timestamp": "1970-01-01 00:00:50.708000",
"label": "Ï€",
"bounding-box": {
"x": 26.193748,
"y": 54.876488,
"width": 7.162426,
"height": 6.1768761
},
"id": "00000a0001000700ff00"
} ],
"bounding-box": {
"x": 25.193748,
"y": 53.876488,
"width": 9.162426,
"height": 8.1768761
}
}, {
"type": "power",
"id": "math/81",
"value": 625,
"bounding-box": {
"x": 47.524475,
"y": 46.521534,
"width": 19.386932,
"height": 15.474529
},
"operands": [ {
"type": "number",
"id": "math/79",
"label": "25",
"value": 25,
"items": [ {
"type": "glyph",
"timestamp": "1970-01-01 00:00:53.931000",
"label": "2",
"bounding-box": {
"x": 48.524475,
"y": 52.038522,
"width": 6.1654167,
"height": 9.3627243
},
"id": "00000c0001000700ff00"
}, {
"type": "glyph",
"timestamp": "1970-01-01 00:00:54.688000",
"label": "5",
"bounding-box": {
"x": 55.626163,
"y": 51.266624,
"width": 5.6497192,
"height": 9.7294388
},
"id": "00000d0001000700ff00"
} ],
"bounding-box": {
"x": 47.524475,
"y": 50.266624,
"width": 14.751408,
"height": 11.729439
}
}, {
"type": "number",
"id": "math/80",
"label": "2",
"value": 2,
"items": [ {
"type": "glyph",
"timestamp": "1970-01-01 00:00:55.783000",
"label": "2",
"bounding-box": {
"x": 62.212154,
"y": 47.521534,
"width": 3.6992531,
"height": 5.6176338
},
"id": "00000e0001000700ff00"
} ],
"bounding-box": {
"x": 61.212154,
"y": 46.521534,
"width": 5.6992531,
"height": 7.6176338
}
} ]
} ]
}, {
"type": "number",
"id": "math/109",
"label": "1963.495",
"value": 1963.495,
"generated": true,
"available-notations": [ "decimal", "rational", "mixed" ],
"items": [ {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.938207",
"label": "1",
"bounding-box": {
"x": 82.061012,
"y": 52.038522,
"width": 3.919281,
"height": 9.3627243
},
"id": "00000f0001000700ff00"
}, {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.938391",
"label": "9",
"bounding-box": {
"x": 86.416565,
"y": 52.038522,
"width": 5.9476776,
"height": 9.672142
},
"id": "0000100001000700ff00"
}, {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.938559",
"label": "6",
"bounding-box": {
"x": 93.300514,
"y": 52.023925,
"width": 6.0164413,
"height": 9.6721382
},
"id": "0000110001000700ff00"
}, {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.938716",
"label": "3",
"bounding-box": {
"x": 100.25323,
"y": 52.038522,
"width": 5.3976059,
"height": 9.5575409
},
"id": "0000120001000700ff00"
}, {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.938867",
"label": ".",
"bounding-box": {
"x": 106.5871,
"y": 59.4146,
"width": 2.0356216,
"height": 2.0356255
},
"id": "0000130001000700ff00"
}, {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.939019",
"label": "4",
"bounding-box": {
"x": 109.059,
"y": 52.038522,
"width": 6.3831558,
"height": 9.3627243
},
"id": "0000140001000700ff00"
}, {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.939169",
"label": "9",
"bounding-box": {
"x": 116.37843,
"y": 52.038522,
"width": 5.9476776,
"height": 9.672142
},
"id": "0000150001000700ff00"
}, {
"type": "glyph",
"timestamp": "2018-12-04 07:49:14.939319",
"label": "5",
"bounding-box": {
"x": 123.26237,
"y": 51.266624,
"width": 5.6497192,
"height": 9.7294388
},
"id": "0000160001000700ff00"
} ],
"bounding-box": {
"x": 80.561012,
"y": 50.266624,
"width": 49.351082,
"height": 11.84404
}
} ]
} ],
"available-notations": [ "decimal" ],
"bounding-box": {
"x": 25.193748,
"y": 46.521534,
"width": 104.71835,
"height": 15.623508
},
"id": "MainBlock",
"version": "2"
}If you ask for conversion when you send your strokes, the equation’s solving appears in all the outputs.
\pi \times 25^{2}\simeq 1963.495
