search for: cholmod_ssmult

...graphs. Now, as the subject says, I'm bringing up the topic of what should happen when these matrices appear in matrix multiplications. Somewhat by design, but also partly by coincidence, the *sparse* pattern matrices multiplication in the Matrix package mostly builds on the CHOLMOD library `cholmod_ssmult()` function which implements "Boolean arithmetic" for them, instead of regular arithmetic: "+" is logical "or" "*" is logical "and". Once we map TRUE <-> 1 and FALSE <-> 0, the only difference between boolean and regular arithmetic...

...e subject says, I'm bringing up the topic of what should > happen when these matrices appear in matrix multiplications. > Somewhat by design, but also partly by coincidence, the *sparse* > pattern matrices multiplication in the Matrix package mostly builds on > the CHOLMOD library `cholmod_ssmult()` function which implements > "Boolean arithmetic" for them, instead of regular arithmetic: > "+" is logical "or" > "*" is logical "and". > Once we map TRUE <-> 1 and FALSE <-> 0, the only difference between > boolean...

...e subject says, I'm bringing up the topic of what should > happen when these matrices appear in matrix multiplications. > Somewhat by design, but also partly by coincidence, the *sparse* > pattern matrices multiplication in the Matrix package mostly builds on > the CHOLMOD library `cholmod_ssmult()` function which implements > "Boolean arithmetic" for them, instead of regular arithmetic: > "+" is logical "or" > "*" is logical "and". > Once we map TRUE <-> 1 and FALSE <-> 0, the only difference between > boo...