I know how to use "simple" complex number on TI-89
for example: 8+i3
but how about if there is two equations and we want to solve for x and y:
for example: (1+i1.5)x + i2.5y=20 and 11x + 15y=0
solve for x and y.
Is it possible to do the calculation using solve(
I tried to do it, but I kept getting "false" answer.
Any responds would be GREATLY appreciated.
Best regards,
RC
Try :
cSolve((1+i*1.5)*x+i*2.5*y=20 and 11x+15y=0, {x,y})
cSolve is for solving in the set of complex numbers.
(I've always liked to put * for multiplying, because it sometimes yield errors, so I find it wiser to do it the first time ;p)
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Yay ! It works
And just so you know, you don't need the * here