The two finger method is used for Matrix Multiplication. To form it, the left hand is a thumbs up with the index finger pointing to the right, and the right hand forms a backwards "L".![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrPD_8mrSaF55UoPdj_jQT0fR7Adr-KHIDjMvPY8QY4GFbvqZykHF8vZdmlImDXFsFVB_8FKw88vGisMyR9l8D50SK_mzhrNOIqVnLmUnlmfGJWlq6n2CZ93r6N6Dd9nNS9OCGtto8Z4g/s320/september1409matrixoperationscontinued_2.png)
The right hand uses all columns up before the left hand moves to the next row. Each row & column's product is an element in the resulting matrix.
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