Post your CAS programs and functions!

[kdelwat]

I'm interested in collecting some useful programs for both Specialist and Methods to hopefully speed things up in the exam, so hopefully this is the right place to ask!

I'll start things off with a link to http://scriptedmath.com/, which has some incredibly useful programs including a "points of interest finder" for graphs.

I'll also contribute a hacky little function of my own, for those doing Specialist, which converts a rectangular complex number into cis polar form:

Define topolar(z)=string(abs(z))&"cis("&string(angle(z))&")"

Thanks in advance!

[Swagadaktal]

menu --> 3 --> 1

you're welcome

[pi]

Make sure to check out:
- Re: Mathematical Methods Guides and Tips
- Re: Specialist Mathematics Resources

[qazser]

Just found out pressing ON, turns CAS on!

[Adequace]

Just found out pressing ON, turns CAS on!

hey mate u seem to no alot about how to use a cas, im struggling to turn it off plz help

[JellyBeanz]

hey mate u seem to no alot about how to use a cas, im struggling to turn it off plz help

I may not be on his league but i know this one trick where you can calculate things quickly, it's called the scratchpad.

[Swagadaktal]

I may not be on his league but i know this one trick where you can calculate things quickly, it's called the scratchpad.

*TRIGGERED*

OH FOR GODS SAKE DO NOT USE SCRATCH PAD WTF ARE YOU TRYING TO HURT ME
OMGGGGGGGGGGGGGGGGGGGG
WTHHHHHHH
NO DO NOT USE SCRATCHPAD IT'S NOT A TRICK IF ANYTHING IT TRICKS YOU

[qazser]

hey mate u seem to no alot about how to use a cas, im struggling to turn it off plz help

Soaking it for ~15 minutes does the trick. Turn it off permanently

[pi]

Hey guys can we not post spammy shit in this thread, it seems to have been made with good intentions so either help someone out by posting a tip or post elsewhere

[MightyBeh]

I'm interested in collecting some useful programs for both Specialist and Methods to hopefully speed things up in the exam, so hopefully this is the right place to ask!

I'll start things off with a link to http://scriptedmath.com/, which has some incredibly useful programs including a "points of interest finder" for graphs.

That scripted math thing is actually really cool. Mine are mostly geometry-based (and unnecessary ), but I thought I'd share.

Area

Trapezium
Where 'a' and 'b' are the straight sides and 'h' is the height

Code: [Select]

Define areaTrap(a,b,h)= (1/2)(a+b)h
Ellipse
Where 'a' and 'b' are the major and minor axes

Code: [Select]

Define areaEllipse(a,b)= a*b*pi
Area of Triangle (sine)
Where 'a' is an angle and 'b' and 'c' are the sides adjacent to 'a'

Code: [Select]

Define areaTri_sine(a,b,c)= (1/2)*(b*c*sin(a))
Area of Triangle (Heron)
Where 'a', 'b' and 'c' are the sides of the triangle

Code: [Select]

Define areaTri_Heron(a,b,c)= sqrt[((a+b+c)/2)*(((a+b+c)/(2))-a)*(((a+b+c)/(2)-b))*(((a+b+c)/(2)-c))]

Surface Area (3D Shapes)

Surface of Cuboid
Where 'l', 'w' and 'h' are the length, width and height.

Code: [Select]

Define surfCuboid(l,w,h)=2(lw+lh+wh)
Surface of Cylinder
Where 'r' and 'h' are the radius and height.

Code: [Select]

Define surfCyl(r,h)=2pi(r^2) + 2pi(rh)
Surface of Cone
Where 'r' and 'h' are the radius and height.

Code: [Select]

Define surfCone(r,h)=r*pi(r+ sqrt(h^2+r^2))
Surface of Sphere
Where 'r' is the radius

Code: [Select]

Define surfCyl(r)=4pi(r^2)

Volume

Volume of Cylinder
Where 'r' and 'h' are the radius and height

Code: [Select]

Define volCyl(r,h)=pi(r^2)h
Volume of Cone
Where 'r' and 'h' are the radius and height

Code: [Select]

Define volCone(r,h)=(1/3)*pi(r^2)h
Volume of Sphere
Where 'r' is the radius

Code: [Select]

Define volSphere(r)=(4/3)pi*r^3

Other Geometry Stuff

Sum of Interior Angles (degrees)
Where 'n' is the number of sides (regular polygon)

Code: [Select]

Define angSumIntD(n)=180n-360
Sum of Interior Angles (radians)
Where 'n' is the number of sides (regular polygon)

Code: [Select]

Define angSumIntR(n)=npi-2pi
Magnitude of Interior Angles (degrees)
Where 'n' is the number of sides (regular polygon)

Code: [Select]

Define angMagIntD(n)=(180n-360)/(n)
Magnitude of Interior Angles (radians)
Where 'n' is the number of sides (regular polygon)

Code: [Select]

Define angMagIntR(n)=(npi-2pi)/(n)
Degrees to Radians
Where 'x' is angle to convert

Code: [Select]

Define angDegR(x)=(x*pi)/180
Radians to Degrees
Where 'x' is angle to convert

Code: [Select]

Define andRadD(x)=(x*180)/pi

[JellyBeanz]

*TRIGGERED*

OH FOR GODS SAKE DO NOT USE SCRATCH PAD WTF ARE YOU TRYING TO HURT ME
OMGGGGGGGGGGGGGGGGGGGG
WTHHHHHHH
NO DO NOT USE SCRATCHPAD IT'S NOT A TRICK IF ANYTHING IT TRICKS YOU

Hahaha, was waiting for this and it was delivered.

XD, in all seriousness ladies and gents, the scratchpad is a lie, do not use it.