Terms for subject Mathematics containing two-variable

English	Chinese
bivariate distribution of two discrete variables	点双变量分布
first degree in two variable equation	二元一次方程式
function generator of two variables	双变量函数产生器
hybrid function generator of two or more variables	混合式双变量或多变量函数产生器
inequality equation in two variables	二元不等式
quadric equation in two variable	二元二次方程