1. Press the 2nd function
2. Press Alpha(which is the same as M-CLR)
3. Press 1 to reset the calculator
SOURCE: user's manual Sharp EL-531WH
You can download the manual from the link below: http://esupport.sharp.at/html/om/index.php?StartRec=50&ListLimit=10&Lang=%&TemplateLang=en&ProdLine=30&SortOrder=DESC&OrderBy=Title&SearchString=
SOURCE: how do i use the inv log for calculations on my sharp el-531wh
Hello,
Let y=10^(x) 10 to the power of x
Take the log of both tems of the equality. You get
log(y)=log[10^(x)] where I used square brackets for clarity. But from the general properties of logarithms
log(b^(a)) = a*log(b)
Applied to our expression above
log(10^x)=x*log10
But since we are using log as log in base 10, log_10(10)=1
so
log(y)=x
We thus have two equivalent relations
y=10^x <----> x=log(y) The double arrow stands for equivalence.
If y is the log of x, then x is the antilog of y
Your question: With log_10 standing for logarith in base 10
pH=-log_10(c) c= concentration
Then log_10(c)=-pH the equivalence above translates as
log_10(c)=-pH is equivalent to c=10^(-pH)
The concentartion corresponding to a pH of 7.41 is
c=10^(-7.41)=3.89x10^(-8)
You enter it as follows
10[^]7.41[(-)][ENTER/=]
Hope it helps
SOURCE: how do i display exponents besides 2, or 3 on the
EL-531W SHARP:
If you want to find 5 to the power of 6 (5^6)
you hit the 5 button, then the button that says yx ( the x is in the exponent spot) then the 6 so it will looks like this 5^6 then press enter to get the answer...hope that helps!
SOURCE: how to solve quadratic equation in SHARP EL-531WH
Hello,
This calculator does not have a program to which you give the
equation, and which returns the solutions. Sorry. You have to use the
formulas you learned.
Let the equation be ax^2 +bx+c=0
You compute the discriminant Call it disc.
disc= (b^2-4*a*c)
1. If discriminant is larger than zero you have two solutions. Let us call them x1 and x2.
Then x1=(-b+square root of disc)/(2*a)
and x2= (-b-square root of disc)/(2*a)
2. If disc=0 , square root of disc =0 and x1=x2=-b/(2*a)
3. If disc is negative, there are no real solutions.
To find the solutions you replace a, b, and c by their numerical values, to calculate disc, its square root, and calculate X1 and X2.
Hope it helps.
SOURCE: can you find shift button on sharp calculator (EL-531WH) D.A.L
Hello,
On Sharp calculators, the shift key is the [2ndF] key.
Hope it helps.
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