如何使用复数绘制Argand图？

Question

我喜欢使用Objective-C从一组复数中创建Argand Diagram。

是否有任何可用的解决方案或模板可以帮助我做到这一点？

有人可以推荐一种方法吗？

提供了类似的youtube链接，但它是一个Android程序：https://www.youtube.com/watch?v=s0oTeZ12_ig

- (void)ComputeABCD
{
    double designFrequency = 1e9;
    double simulateFrequency = 1.5e9;
    double pi = 3.14159265359;
    double omega = 2*pi*simulateFrequency;

    double thetarad=1;

    complex double cascadedA=1+0*I;
    complex double cascadedB=0+0*I;
    complex double cascadedC=0+0*I;
    complex double cascadedD=1+0*I;

    complex double  A=0+0*I;
    complex double  B=0+0*I;
    complex double  C=0+0*I;
    complex double  D=0+0*I;

    complex double  newA=0+0*I;
    complex double  newB=0+0*I;
    complex double  newC=0+0*I;
    complex double  newD=0+0*I;

    int index=0;

    for (id element in storeImpedance)
    {
        id element2 = [storeLength objectAtIndex:index];
        id element3 = [storeIndex objectAtIndex:index];

        NSNumber *numberImpedance = (NSNumber *)element;
        double valueImpedance = [numberImpedance doubleValue];

        NSNumber *numberLength = (NSNumber *)element2;
        double valueLength = [numberLength doubleValue];

        NSNumber *numberIndex = (NSNumber *)element3;
        NSInteger valueIndex = [numberIndex integerValue];

        ++index;

        if (valueIndex==0)
        {
            thetarad=valueLength*pi/180*simulateFrequency/designFrequency;
            A=cos(thetarad);
            B=I*valueImpedance*sin(thetarad);
            C=I*sin(thetarad)/valueImpedance;
            D=cos(thetarad);
        }

        if (valueIndex==1)
        {
            thetarad=valueLength*pi/180*simulateFrequency/designFrequency;
            A=1;
            B=0;
            C=(I*tan(thetarad))/valueImpedance;
            D=1;

        }
        newA=cascadedA*A+cascadedB*C;
        newB=cascadedA*B+cascadedB*D;
        newC=cascadedC*A+cascadedD*C;
        newD=cascadedC*B+cascadedD*D;

        cascadedA=newA;
        cascadedB=newB;
        cascadedC=newC;
        cascadedD=newD;
    }

    printf("The MAT ABCD is:\n");
    printf("%g + %gi\n", creal(cascadedA), cimag(cascadedA));
    printf("%g + %gi\n", creal(cascadedB), cimag(cascadedB));
    printf("%g + %gi\n", creal(cascadedC), cimag(cascadedC));
    printf("%g + %gi\n", creal(cascadedD), cimag(cascadedD));
}