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Posted on Jan 02, 2017
The calculator does not have a solve program, but you can still use it to solve the quadratic equation with a little effort. If you know the therory skip toward the end.
1. First calculate the discriminant usually called Delta and given by
Delta =b^2 -4*a*c store the value in the variable D
If Delta is positive you have two roots X1 and X2 given by
X1=(-b+square root of Delta)/(2*a)
X2=(-b- square root of Delta)/(2*a)
If Delta is equal to 0, X1=X2=-b/(2*a)
If Delta i negative, no real solutions exist
You only solve if Delta is positive or equal to 0.
Putting in the values of a, b, and c
value of a (put you number) [SHIFT][STO] A
value of b (put your value) [SHIFT][STO] B
value of c (put you value) [SHIF][STO] C
[ALPHA] B [X^2] -4[x][ALPHA] A [x][ALPHA] C [=]
Value of delta is displayed. If it is positive, you store its square root in D
[Square root] [ANS] [SHIFT][STO] D ;
Calculate 1/(2*a) and store in variable F
1./(2[x] ALPHA A) [SHIFT][STO] F
To obtain X1
[ALPHA] F [x] ( (-) ALPHA B + ALPHA D ) [=]
To obtain X2
[ALPHA] F [x] ( (-) ALPHA B - ALPHA D ) [=]
Be careful: the (-) is the change sign not the regular minus sign.
Hope it helps.
Posted on Sep 24, 2009
In your manual, Appendix Program Library, (Page A1) you have the listing of the problem to solve the quadratic equation. Type it in your calculator and execute it.
Hope it helps.
Posted on Oct 02, 2009
SOURCE: How do i calculate antilog
For common logs (logs in base 10) use the 10^x function : Press [SHIFT] [Log] to access it.
For natural logs, use the exponential function. Press [SHIFT][ln] to access it.
Posted on Dec 03, 2010
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