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{SECT 0 {EXCHG {PARA 256 "" 0 "" {TEXT -1 41 "Simple Building Blocks -
- Units and Maple" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" 
{TEXT -1 74 "This cell illustrates how a variable may be cleared or de
leted in Maple.  " }{TEXT 256 16 "Evaluate it now." }}{PARA 0 "" 0 "" 
{TEXT -1 0 "" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 35 "feet := 'feet':\nin
ches := 'inches':" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "
" 0 "" {TEXT -1 51 "This cell illustrates how Maple can handle units. \+
 " }{TEXT 257 15 "Evaluate it now" }{TEXT -1 1 "." }}{PARA 0 "" 0 "" 
{TEXT -1 0 "" }}{PARA 0 "> " 0 "" {MPLTEXT 1 0 162 "12 * feet + 16 * f
eet;\nfeet := 12 * inches:\n\n2 * feet + 5 * inches;\n\n(200 * miles)/
(4 * hours);\n\n(4 * inches) * (5 * inches);\n\n(4 * hours) * (60 * (m
iles/hours));" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 
"" {TEXT -1 83 "The next cell illustrates how Maple can be used to wor
k with functions and units.  " }{TEXT 258 15 "Evaluate it now" }{TEXT 
-1 36 ".  Notice that the Maple procedure  " }{TEXT 259 8 "evalf() " }
{TEXT -1 49 " is used to obtain approximate numerical results." }}
{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}}
{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 116 "area := r -> Pi * r^2:\n\nr
adius := a -> sqrt(a/Pi):\n\nevalf(area(4 * inches));\n\nevalf(radius(
50.26548246 * inches^2));" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 0 "" }}
{PARA 0 "" 0 "" {TEXT -1 89 "The next cell illustrates how Maple can b
e used to work with differentiation and units.  " }{TEXT 260 15 "Evalu
ate it now" }{TEXT -1 1 "." }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}}{EXCHG 
{PARA 0 "> " 0 "" {MPLTEXT 1 0 92 "feet := 'feet':\n\nh := t -> 10 * f
eet - (16 * feet/(sec^2)) * t^2:\nv := D(h);\n\nv(0.1 * sec); " }}}
{EXCHG {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 85 "Th
e next cell illustrates how Maple can be used to work with integration
 and units.  " }{TEXT 261 15 "Evaluate it now" }{TEXT -1 1 "." }}
{PARA 0 "" 0 "" {TEXT -1 0 "" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 
0 77 "v := 'v':\n\nv := t -> -32 * (feet/(sec^2)) * t:\nint(v(t), t=1 \+
* sec..2 * sec);" }}}}{MARK "0 0 0" 41 }{VIEWOPTS 1 1 0 1 1 1803 }