短語(yǔ)詞組短語(yǔ)ifs iterate function system 疊代函數(shù)系統(tǒng)Iterate Function System 疊代函數(shù)系統(tǒng);將疊代函數(shù)系統(tǒng)iterate function system ifs 分形疊代函數(shù)系統(tǒng)system of function iterate 函數(shù)疊代系統(tǒng) 返回 iterate function