代做Investment Modeling Spring 2019, Practice Set # 1代做Python编程
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1. What is the tot?
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x=c (1,5,6,3,2) tot=10 *x - (2+x) |
2. (Code) What is x?
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x=c (55, seq (1,10,2),c (2,4,5)) |
3. (Code) What is a?
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a=c (55, seq (1,10,2),c (2,4,5)) a[2]=3 a[8]=6 |
4. (Code) What is t?
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b=1:5 t=0 for (i in b) { t=t+b } |
5. (Code) What is b?
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b=c () a=1:5 for (x in a) { if (a[x]<3) { b[x]=a[x]+3 } else { b[x]=a[x]-3 } } |
6. (Code) What is b?
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b=c () a=1:5 for (x in a) { if (a[x]<3) { b[x]=a[x]+3 } else { b[x]=a[x]-3 } } |
7. (Code) What is e?
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a=2 b=4 c=3 p=1:4 e=p*a^2+p*b+p* (c-2) |
8. (Code) What is c?
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b=1:10 c=b[b<5] |
9. (Code) What is c?
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b=1:10 c=b[b>5 & b<=8] |
10. You invested $100 in investment B for 2 years, and $100 in investment B for 1 year. Your rate of return for both years was exactly the same. If at the end of the 2 years the money grew to $215.25, what was your compound return?
11. You invested $100 in investment A, Year 1 it grew by 10%, Year 2 by -5%, Year 3 by 7%, and Year 4 by 9% . What was the compound return for this investment?
12. What is A(2,6)?
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A=function (x,y) { if (x*y>6) { return(B(x+1,y-1)) } else { return(5*x-2*y) } } B=function (a,b) { if (a+b>8) { return (a*b) } else { return (4*a-2*b) } }
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