Adding Functions
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Re: Adding Functions
Hi Alan,
(1) Simply click on the + button under the "Functions" list.
(2) In the dialog that opens type your function in front of "Function:"
It could be something as complex as factorial as shown here:
Or something as simple as this:
squared(x) = x^2
Does this answer your question?
(1) Simply click on the + button under the "Functions" list.
(2) In the dialog that opens type your function in front of "Function:"
It could be something as complex as factorial as shown here:
Or something as simple as this:
squared(x) = x^2
Does this answer your question?
Adding Functions + Vertical Asymptotes
Yes, this answers my question. Thank you.
BTW I thought I would let you know that I spent a fair bit of time this past week looking for a windows calculator that I can use when creating mini tutorials for a high school math website that I am creating. Your calculator is considerably better than any other I found. It provides some very nice features, especially the ability to create as many "memory" variables as I need (with the added bonus of meaningful names). The ability to create my own functions and the ability to save any set of equations to a file for future retrieval are also very nice features. My big surprise came when I discovered that you live in Ottawa which is also where I live. Funny how my world wide search ended up so close to home.
I do have one more question. When I enter tan(pi/2) or sin(pi/2)/cos(pi/2) the value 1.633124E16 is displayed. Shouldn't the display show "Division by zero" ?
Thank you
BTW I thought I would let you know that I spent a fair bit of time this past week looking for a windows calculator that I can use when creating mini tutorials for a high school math website that I am creating. Your calculator is considerably better than any other I found. It provides some very nice features, especially the ability to create as many "memory" variables as I need (with the added bonus of meaningful names). The ability to create my own functions and the ability to save any set of equations to a file for future retrieval are also very nice features. My big surprise came when I discovered that you live in Ottawa which is also where I live. Funny how my world wide search ended up so close to home.
I do have one more question. When I enter tan(pi/2) or sin(pi/2)/cos(pi/2) the value 1.633124E16 is displayed. Shouldn't the display show "Division by zero" ?
Thank you
alan- Guest
Re: Adding Functions
It's good to hear from someone from Ottawa
For which high school are you building a website? My high school back in the days was Glebe.
You're absolutely right, tan(pi/2) should return Div by Zero error. Right now the trigonometry functions are computed only up to 16 digits precision and this is what's causing this round-off error. In our next release (v2.2) our trig algorithms will be enhanced to compute results up to 1000 digits precision and that will fix this issue as well.
For which high school are you building a website? My high school back in the days was Glebe.
You're absolutely right, tan(pi/2) should return Div by Zero error. Right now the trigonometry functions are computed only up to 16 digits precision and this is what's causing this round-off error. In our next release (v2.2) our trig algorithms will be enhanced to compute results up to 1000 digits precision and that will fix this issue as well.
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