Multivariable Limit Support

[ObjectsCountries]

As far as I can tell, it's currently not possible to use Qalculate! to determine multivariable limit equations such as $\lim_{(x,y)\to(-2,1)}\frac{x^2}{(x+y)y}$. This might be remedied by adding a new function (perhaps called multilimit) that takes in a multivariable function, a vector of numbers that are the values that each unknown approaches, a vector of unknowns, and a vector of integers from -1 to 1 inclusive.

The current workaround I've found is to nest limits within each other, or use the output of one limit result as the input of another. limit(\x^2/((\x+\y)\y),−2,\x) returns 4/(y^2-2y), which I can either plug into another limit function (limit(limit(\x^2/((\x+\y)\y),−2,\x),1,\y)), or use by itself (limit(4/(y^2-2y)),1,\y)). Both methods correctly return -4.

[hanna-kn]

I've now added a simple multilimit function. It is uses the same method as your workaround (using foreach function).