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分解小数位

y=((\operatorname{mod}(\operatorname{floor}(a*(10^{\operatorname{floor}(x)})),10)-\operatorname{mod}(\operatorname{floor}(a*(10^{\operatorname{floor}(x+1)})),10))/(\operatorname{floor}(x)-\operatorname{floor}(x+1)))*x+(\operatorname{floor}(x+1)*\operatorname{mod}(\operatorname{floor}(a*(10^{\operatorname{floor}(x)})),10)-\operatorname{floor}(x)*\operatorname{mod}(\operatorname{floor}(a*(10^{\operatorname{floor}(x+1)})),10))\ \left\{x\ge0\right\}

将数字的值填入 $a$ ,比如 $\pi$

朝鲜将军

y=\left|ax^{2}\right|\ \left\{-0.2<x<0.2\right\}

x^{2}+\left(y-0.1\right)^{2}=0.1^{2}

x=0\ \left\{-0.3\le y\le0\right\}

y=x-0.3\left\{-0.2\le x\le0\right\}

y=-x-0.3\left\{0\le x\le0.2\right\}

将 $a$ 设为动画模式